Safety Measures in Construction Site

Constructions sites are the place where risks are inevitable. The workers on the job site are exposed to various dangerous situations. Even a single miss of safety term can cause severe injuries, sometimes death. So, it is important to follow the safety tools to avoid life threatening problems. The effect of simple safety policy will bring in a calm and friendly working environment for the workers.

Following a safety precaution not only protects the workers from fatal consequences but also keeps builders away from legal issues raised because of the infringement in the safety term. The content discusses the basic site safety rules that every work site must follow. They are a simple set of rules offering results rooted deep in a problem free construction environment.

  • The site manager must conduct a site meeting before the construction process starts. It should be attained by the entire work force, and the possible safety problems of the job site should be discussed to solve the existing problems.
  • The site manager must conduct a site meeting before the construction process starts. It should be attained by the entire work force, and the possible safety problems of the job site should be discussed to solve the existing problems.
    • The workers must keep the job site tidy, keeping aside the dangerous items that cause potential risks. The demolished materials like mortar, glass, hardcore and concrete should be dumped away from the working area. If it is not possible, they should be separated using fences.
  • Every worker must put on the necessary safety protections to keep themselves unaffected if the worse situation comes. You must be accompanied by hard hats, gloves, heavy boots, and protection glasses during your work.
  • Using right tool and machinery also comes under the building site safety policies. The machines should be in a working condition and must be maintained in a good way.
  • Working at heights is another thing that is common in the construction field. Risks are also higher for those who are working above the usual height. To avoid risk related to fall, site instructor should check ladders and scaffolding prior to the job. Safety harness is another best option to ignore the problems related to working at heights.
  • Banning on alcohol consumption on the job site is the rule strictly followed by the workers.
  • Workers should be informed about the health problems caused by a prolonged work in hot, cold and wet environments. They cause a range of health risks, from dehydration to sun strokes.
  • Every job site keeps the First Aid materials in an organized way that can avert any kind of inconvenience.
  • Every worker must have clear knowledge of what to do if an emergency strikes. The work responsibility must be divided among workers so that they can take quick action to cut down the damages.

Maintaining a proper safety protocol is one of the important things in a construction work. Every building site must follow the rules as strictly as they are mentioned in the rule book. The infringement in the safety term can bring unnecessary legal issues and halt the construction work temporarily or permanently. The risk of life is the major thing to be concerned.

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Safety Measures in Construction Site

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Arka Roy

Benefits of drones in construction

Drones are rapidly changing the industry scenario, especially in the fields of civil engineering and surveying. They are reaching the odd locations that are untouched by the human resource. The application of this technology, though, goes beyond these two names. They are strongly imprinting their values across the industry, from real estate to golfing. The achievements earned by this technology are countless, and they deal with toughest challenges with ease and bring out the productive result for the companies. The content explains in brief how they earned this unmatched reputation in the dynamic world.


Navigating the difficult location in the construction field is no longer a tricky job. Unmanned Aerial Vehicles are performing the job as skillfully as no one can do. It sends images of what it observes to the planning team.

The data sent by drones contain impressive details of the objects, including the smallest option. The 360 degree panorama views help civil engineers divide the work as per the priority basis. Operators also share these images in order to come up with a better plan. The data solve various complex issues like project timing, equipment needs and prevailing challenges of a construction.


Drones play major roles for surveying. They quite satisfyingly assist Geographical Information System (GIS) professionals. GIS is known for their services like locating boundaries of the property, subdividing land and surveying construction sites. No doubt to say, drones have already made loud noises for catering the same functions proficiently and flawlessly. They send still images of a construction map to a cloud-based storage from where authorities can access and assess the data to plan meticulously. Since the cameras and the distance can be regulated remotely, they rise above than natural and artificial obstacles.


Drones are affordable and accurate, and this is why they are entering the industry at large. The benefits are countless and at the same time reliable. They accelerate the production, assess the present situation and help in figuring out the problem more efficiently than any other does. Traditionally, construction has been the manpower controlled field. With the introduction of this technology, the age-old thought starts getting obsolete. They use the human – resource team in a profitable way and cut down the unnecessary expenses.

Drones have already made their presence felt in the industry with offering profits more than expected. Getting real time data of the construction has become easier. Thus, it also solves many difficult challenges prevailing over the field.

However, there exist regulations, probable risks and service options to take into consideration prior to launch a drone program.

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Various types of tests conducted to verify the quality of aggregates in road work

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Arka Roy

Various types of tests conducted to verify the quality of aggregates in road work

Aggregate is a vital element in pavement construction. The load transfer capacity of pavements is significantly impacted by the aggregated. So, it is recommended to examine the aggregates comprehensively prior to utilize them in the construction site.

The aggregates should contain the properties like durable and long-lasting with perfect shape and size so that the pavement can function monolithically. Aggregates are evaluated for strength, toughness, solidity, shape, and water absorption.

In order to decide the suitability of the aggregate for use in pavement construction, The following tests are conducted to check whether the aggregates are suitable to be utilized in pavement construction:
In order to decide the suitability of the aggregate for use in pavement construction, The following tests are conducted to check whether the aggregates are suitable to be utilized in pavement construction:

1.CRUSHING TEST: Crushing under compressive stress is a model to check the eligibility of pavement material for getting passed or failed. A test is organized with IS: 2386 part-IV and applied to find out the crushing strength of aggregates. The aggregate crushing value offers a relevant measure of resistance to crushing under increasingly employed crushing load.

2.ABRASION TEST: Abrasion test is accomplished to examine the rigidity of aggregates as well as determine whether they can be used for various pavement construction works. Los Angeles abrasion test is mostly suitable for executing the hardness property and it is implemented in India (IS: 2386 part-IV).

3.IMPACT TEST: The aggregate impact test is accomplished to verify the resistance to impact of aggregates. Aggregates which have passed 12.5 mm sieve and conserved on 10 mm sieve is filled with a cylindrical steel cup having internal dia 10.2 mm and depth 5 cm that is connected to a metal base of impact testing machine. The material is covered with 3 layers where each layer is tamped for 25 numbers of blows. Metal hammer having weight 13.5 to 14 Kg is set to drop with a free fall of 38.0 cm through vertical guides and the test specimen is dependent on 15 numbers of blows.

4.SOUNDNESS TEST: Soundness test is conducted to analyze the resistance of aggregates against weathering action, by carrying out accelerated weathering test cycles. The Porous aggregates is dependent on freezing and thawing is liable to decompose beforehand. To determine the stability of such aggregates, they are dependent on a faster soundness test as stated in IS: 2386 part-V.

5.SHAPE TESTS: The particle shape of the aggregate mass is set with the proportion of rough and enlarged particles in it. Large and enlarged aggregates may be damaged to higher workability and stability of mixes.

6.SPECIFIC GRAVITY AND WATER ABSORPTION: The design of concrete and bituminous mixes is mostly based on the properties like specific gravity and water absorption of aggregates. The specific gravity of a solid refers to the proportion of its mass to that of an equivalent volume of distilled water at an indicated temperature. As the aggregates may include water-permeable voids, so the following two measures of specific gravity of aggregates are utilized:

  1. Apparent specific gravity and
    2. Bulk specific gravity.

7.BITUMEN ADHESION TEST: Bitumen is compatible with all general types of road aggregates on condition that they are dry and do not contain dust. Without water, no adhesion issue of bituminous construction occurs.

If the aggregate is wet and cold, the adhesion issue may happen. This issue can be handled by eliminating moisture from the aggregate by drying and raising the mixing temperature. Besides, the existence of water leads to removal of binder from the coated aggregates. This problem happens if bitumen mixture is absorbent to water.

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Various types of tests conducted to verify the quality of aggregates in road work

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The duties and responsibilities of civil engineers

The main objective of civil engineers is to plan, design, build, operate and maintain roads, bridges, dams, water supply schemes, sewerage systems, transportation, harbors, canals, dockyards, airports, railways, factories and large buildings.

Civil engineers generally render their jobs in the following sectors – structural, water resources, soil and foundation, transport, airport, town planning or construction.

Duties of an airport engineer:

  1. a) Having expertize in producing designs for airports, hangars and control towers
    b) Administers the construction, maintenance and repair of runways, considering the factors like weight, size and speed of aircraft
    If any technical issue arises throughout construction, guides contractors to solve the issue

Duties of a geotechnical/soil engineer:

  1. Examines projected construction sites to determine the conditions of soil and foundation with by initiating drilling and sampling programs
    b. Monitors and takes part in job site and laboratory testing of soils, and ensures that test equipment and machinery is arranged perfectly
    c. Creates reports of test results and suggests proposals for providing the solution to engineering issues given in test reports
    d. Creates specifications of soil mixtures which can be utilized in roads, embankments and other construction, and measures and provides suggestions on the required slope at cuttings and the density of soil dams and retaining walls.

Duties of a harbor engineer

  1. designs and manages the construction of harbour facilities like breakwaters, navigation aids, navigation channels, jetties, wharves, heavy-duty pavement surfaces, cargo sheds and bulk handling plants for grain, ore and other cargo
    b. Makes sure that the designs are created according to the needs of safety and serviceability
    c. Optimize the use of funds and materials to fulfill the safety and serviceability requirements.

Duties of a harbor engineer:

  1. a) Having expertize in evaluating population and growth statistics and traffic patterns and volume to fulfill the needs of future project
    Discusses with government officials and other specialists to make the design perfect and secured traffic systems
    c. Reviews roadway and embankment design, the geometry of highway interchanges and the maintenance of facilities like culverts and overpasses.

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The duties and responsibilities of civil engineers

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Brief explanation of rebaring method in reinforced concrete construction

Rebaring technique in reinforced concrete construction stands for a process that is undertaken for fabricating and arranging of reinforcement bars perfectly based on the design and drawings intended for RCC works.

It is known fact that concrete is very durable in compression and weak in tension. The reinforcement bars alias rebars are strong in tension and these are combined with concrete to employ its tension property.

The responsible engineer produces the calculation of reinforcement bar for a reinforced concrete work. The engineer supplies us the particular details of the number of reinforcement bars as well as the shape and size of each bar for each work.

The responsible engineer produces the calculation of reinforcement bar for a reinforced concrete work. The engineer supplies us the particular details of the number of reinforcement bars as well as the shape and size of each bar for each work.

Various types of loads like tension, compression, lateral, horizontal and torsion are available which develop from pressure. To determine the strength of concrete, you have to find out whether concrete can withstand these loads or not.

The strength obtained by the R.C.C structure is based on the method and the techniques to be used for setting up the reinforcement bar. The reinforcement bars are primarily patterned over its surface to allow perfect bonding with the concrete.

Importance of Rebaring Technique in Reinforced Concrete Construction: The steel reinforcement usually is segregated into two categories i.e.

  • Primary Reinforcement or Main Steel reinforcement
    • Secondary reinforcement or distribution reinforcement

The objective of applying main steel reinforcement bars in R.C.C structures is to maintain resistance capacity for withstanding the entire design loads delivered to it. The secondary reinforcement bars are primarily used to maintain longevity and elegant look.

This reinforcement ensures to keep resistance for localized areas like limited cracking. These can also combat the stresses produced because of divergences in temperature.

The main bars which are used with indicated diameter, are bent at the ends. The stirrups belong to reinforcements which are arranged laterally, to place the main bars of the structural elements like beams and columns, in exact location.

The stirrups may come in various shapes like circular, square, rectangular, helical or diamond on the basis of the cross-section of the structural element. The reinforcement bars in the corners may appear as L – shaped.

The caging for the structural element to be decided should be perfectly fastened so as to keep the position of each bar unchanged throughout concreting. This is a check that should be always maintained throughout concreting otherwise it can hamper the stability of the structural member.

The rebars are primarily arranged at the junctions where the formwork of the structural element is closed and at the point where a new structural element should be fastened with the former one.

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Brief explanation of rebaring method in reinforced concrete construction

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MasterRC Pile Cap Designer – An exclusive software for designing & detailing of normal shaped pile caps

MasterRC Pile Cap Designer is an intuitive software package for structural engineering works. It can be used for the analysis, design, detailing and scheduling of commonly shaped pile caps for 1 to 9 piles in quickest possible way.

The design and detailing results can be shown on screen in the software and updated with each key pressed for interactive structural design in perfect way.

With graphically defined output, it is possible to instantly observe the detailing of pile cap. offers The quick assessment of the thorough and perfect design can be achieved with the clear and exact calculation output. MasterRC Pile Cap Designer reduces the strain for the time consuming task of designing and detailing pile caps by providing innovative design options to keep superior control over the design progression.

The software offers the following functionalities :-

  • Design pile caps on the basis of bending theory or a truss analogy method
    • Abides by the conventions set by Whittle and Beattie (Concrete, 1972)
  • Based on deep Beam Theory, deep beams are designed perfectly
    • Any steel that exists outer the 3 diameter bands, is overlooked in design
    • The truss analogy is done with concrete compression
    • Design is made adhering to BS 8110 & SABS 0100
  • Scheduling to BS 4466, BS 8666 or SABS 82
    • Interchange among Design Codes to compare results
    • Improved shear stress capacity

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MasterRC Pile Cap Designer – An exclusive software for designing & detailing of normal shaped pile caps

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Arka Roy

Some crucial points to be considered before purchasing cement bags for jobsite

Cement is considered as one of the most vital construction elements in modern construction. If the strength of the cement is good, the structure will also be stronger and long-lasting.

The cost of cement is also higher as compared to other construction materials (Coarse aggregates, fine aggregates etc.) and the cement plays an important role in determining the overall project cost.
There are several manufacturers for cement. Be careful before purchasing any cement bag as sometime it is found that the cement bags delivered to jobsite are duplicates. So, it is necessary to verify some basic standard specification prior to purchase cement bags. Given below, the detailed information which are generally printed on a standard cement bag. While buying or obtaining cement bags, these information should be tallied carefully:-

  1. Check the manufacturer’s name and his registered trade-mark
    02. Black colored ISI mark should have been printed on the cement bags. It complies with each requirement of the specifications.
    03. The words ‘Ordinary Portland Cement, 53 Grade ’or‘Ordinary Portland Cement, 53-S Grade or Portland Pozzolana Cement whichever is relevant should be mentioned in the bag.
    04. Net quantity of cement in kg should vary from 25 Kg, 50 Kg etc.
  2. Brand of cement
    06. Verify the MRP (Maximum Retail Price) of bag
    07. The words ‘Use no Hooks’ or symbol should be given in the bag.
  3. Batch/control unit number regarding week, month and year of packing should be mentioned.
    09. Address of the manufacturer should be provided.
    10. Type and proportion of performance improver(s) should be included, in a case of inclusion of performance improvers.
  4. Specific IS code number should have been printed on the cement bags. i.e. if your cement bags belong to OPC 53 grade cement, “IS-12269-1987” should have been printed on the cement bags and for Portland Pozzolana Cement (PPC) cement bags, “IS 1489-1991” should be printed on the cement bags.

Some crucial points to be considered before purchasing cement bags for jobsite

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Arka Roy

Details of technical specifications of bitumen macadam & bitumen concrete for any road work

This construction video briefly explains the technical specification for bitumen macadam and bitumen concrete essential for any road work.

Bitumen Macadam alias Asphalt Concrete is formed by blending aggregate, filler and bitumen and come in solid, medium or open graded on the basis of the end application.

Macadams are categorized into three primary layer categories like Base, Binder and Surface Course. It is applied as a binder course for roads where lots of heavy commercial vehicles pass through as well as a closed-graded premix materials exist with voids content 5-10 per cent. It has strong and long-lasting surface.

Bituminous concrete refers to a sort of construction material that is employed for paving roads, driveways, and parking lots. It is formed by mixing stone and other forms of aggregate materials combined jointly through a binding agent. This binding agent is known as “bitumen” and is a by-product of petroleum refining. It contains a dense, sticky texture like tar once heated, then develops a thick solid surface as soon as it gets dried. Bituminous concrete is also extensively recognized as asphalt in various parts of the globe.

This material does not include cement. It has typical black appearance. It is frequently placed right over a gravel base layer to build up new roads and parking lots, but may also be poured over prevailing concrete to patch-up or smooth out bumps and voids.

As soon as the bituminous concrete are poured onto the roadway, the surface is leveled and compacted through a large paving machines.

For Bituminous Macadam :-
1) Grade of bitumen should be vary from 60 to 70

2) Temperature at different stages :-
a) At the time of blending materials maximum temperature should be 1650C
b) At the time of laying, the temperature should be 1250C
c) At the time of rolling, the temperature should be 900C


3) Levels (tolerance) – At the time of rolling, the layers should be +6 M to -6 M.
4) Field Density Test – Here, compaction should be 98%; 1 test per 250 m2 of area.

To get the complete details, watch the following video.

Details of technical specifications of bitumen macadam & bitumen concrete for any road work

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Arka Roy

The uses of excavation supports or earth retaining structures

Excavation support or earth retaining structures are vital where deep excavation is created and arrangement of necessary slope is not possible. Given below, the details of different types of excavation supports.

What Are Excavation Supports?
Usually, to develop a structure either over the ground or underneath the ground, excavation of soil should be arranged in the ground.

The excavation may come in the form of shallow or deep on the basis of our need. But when the soil is dug deeply, there is a chance for collapsing of the soil from the sides of excavated area because of low strength.

To get rid of this issue and to create the cut vertically perfect, some temporary earth retaining structures known as excavation supports are essential.

The soil cut failure occurs if the limit of excavation surpasses its safe height limit and it is subjected to unconfined compressive strength of soil and cohesion.

From the table, given below, the safe height limit for various soil types are given on the basis of their unconfined compressive strength and cohesion limits.

Types of Excavation Supports: Usually, the following methods are mostly used for providing excavation supports-

• Soldier pile and lagging
• Soil nailing

Soldier Pile and Lagging: Soldier piles refer to I-sections which comprise of web among two flanges. These I-sections are drilled into the ground encompassing the boundary of an excavation. The piles are delivered to the point slightly under the necessary excavation depth.

The concrete with poor strength is utilized for the purpose of grouting of piles. The gap among each two nearby piles is restricted to 10 feet. Once that exaction is completed, the flanges of piles provide good support to the surrounded soil.

Wood lagging is applied among the piles. The lagging comprises of long timber sheets or planks which are arranged behind the front flanges of piles to provide well support to the soil among the piles.

The timber contains 2 to 4 inches depth, there, some excavation should be arranged by hand behind the front flange. To create stable bond among horizontal wood sheets and front flange, welded studs, clips etc. are utilized.

The uses of excavation supports or earth retaining structures

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Reinforcement details for slabs-on-ground with crack control factors

While designing the slabs, which are built up on ground, the crack control factors should be taken into account. Given below, reinforcement details for slabs-on-ground.

The density and the design of the slabs-on-ground are dependent on the cracks which are developed because of the external loading. The calculation for slab thickness is made on the basis of the suppositions of a slab being unreinforced and un-cracked.

For specific situations of slabs on ground, the steel reinforcement can offer a great solution. The characteristics of this method contains the following :-

1. The limiting of cracks occur because of shrinkage
2. Apply bigger joint spacing that is larger than the unreinforced slabs
3. The possibilities for cracks development may be avoided by provision for moment capacity and constancy for those areas.
4. Cracking can’t be resisted with the integration of reinforcement. These elements allow in minimizing or adjusting the produced crack width by genuinely raising the frequency of cracks that is created.

If a reinforcement design is proportioned and arranged perfectly, it can allow to restrain the width of the crack significantly and therefore the serviceability period of the slab is not impacted.

Thickness Design Methods for Slabs-on-Ground Construction

When reinforcement in the slab design is applied increasingly, the un-cracked strength of the slab is slightly affected. The various methods for thickness design like Pickett’s Analysis Method (PCA), WRI (Wire Reinforcement Institute) Design Method and COE methods can be employed for creating the design of slabs on ground with reinforcement.

Reinforcement for Slabs-on ground for Crack Width Control Only

The width of crack can be restrained by reinforcement on the basis of the two factors like the joint spacing and the thickness of the slab. Otherwise we can define the crack width control as a function of joint space and slab thickness.

There should be a minimum steel ratio of 0.5% of the slab cross section to facilitate the saw cut of contraction joints to be removed.

When the reinforcement is arranged, it is suggested to set the reinforcement bars nearer to the surface of the slab top surface devoid of compromising the minimum concrete coverage over the reinforcement.

Reinforcement details for slabs-on-ground with crack control factors

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Arka Roy