Resist construction issues at site by making cost-effective foundation design

In order to create the design of foundations in a cost-effective manner as well as resolve practical construction issues, some factors should be taken into consideration.

Tips to create the design of the foundations in a cost-effective manner and avoid construction issues at job site.

a. Formation of the foundation should be shallow
b. Curtail construction cost of the foundation
c. Awareness of structural designer
d. Resist the application of costly and complicated formworks
e. Consistency of site investigation
f. Take decision to build up rapid or slow foundation
g. Impact of foundation construction on the ground and structures at area of the foundation
h. Disparities in foundation geometry and requisite of diverse joints
i. Effect of objectionable elements on constructed foundation

Build up the Foundation as Shallow for saving

It is recommended to make the foundation shallow as much as possible. Make the best use of the size to sufficiently support loads and resist ecological impacts. Proper care should be taken to keep the depth and width of the foundation within limit.

This measure should be mostly suitable where the foundation is built up in completely saturated soil in which issues may arise because of existence of water. The cost is increased significantly with regards to the foundation developed in dry soil condition.

Decrease Cost of Foundation Construction: This can happen with a constant modification of construction methods and costs as the frugality of design differs significantly and usable standard might be obsolete.

To get more information, go through the following article theconstructor.org

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Published By
Arka Roy
http://www.constructioncost.co
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How to design tensile strength of angle section according to IS Code 800-2007

This is another useful presentation from the eminent civil engineer Mr. Parag Pal. In this video he shows the essential method to create the design of tensile strength of angle section ISA 9060 with thickness 6 mm as per IS code 8000-2007 limit state method.

Tensile strength is a vital attribute of concrete as concrete structures are extremely susceptible to tensile cracking owing to different types of effects as well as applied loading itself.

Tensile strength of concrete is very low with reference to its compressive strength.

Because of the complexity in employing uniaxial tension to a concrete sample, the tensile strength of the concrete is defined with indirect test methods like split cylinder test and flexure test.

It must be remembered that above methods provide the greater value of tensile relating to the uniaxial tensile strength.

Tensile strength calculates the force necessary to pull a structural beam to the point where it cracks.

The tensile strength of a material refers to the maximum amount of tensile stress that it is based on prior to failure.

The definition of failure differs in relation to material type and design procedure.

Watch the following video tutorial, to learn the design process for tensile strength.

Read Continue

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Published By
Arka Roy
http://www.constructioncost.co
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Some useful construction tips to provide clear cover for reinforced concrete structure

This construction video tutorial will provide detailed guidelines on how to provide perfect clear cover in reinforcement concrete structure.

With the intension of safeguarding the reinforcement from corrosion as well as arranging fire resistance to bars implanted in concrete, clear cover is set for Reinforced Concrete Structures.

Clear cover stands for the distance among C.G of reinforcement bars and bottom most point of concrete.

The thickness of cover is dependent on ecological conditions and nature of structural member.

The depth of concrete cover is calculated by applying a cover meter.

The clear cover that should be provided is determined by Indian Standards. IS 456:2000.

Watch following youtube video to learn the complete process :-

Read more

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Published By
Arka Roy
http://www.constructioncost.co
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Pros and Cons of ready-mix concrete

Ready-mix concrete belongs to a concrete that is formed in a batch plant, on the basis of a predefined engineered mix design. Ready-mix concrete is generally supplied in two ways i.e. the barrel truck or in–transit mixers.

This type of truck supplies concrete in a plastic state to the site. And the volumetric concrete mixer. It supplies the ready mix in a dry state and then blendes the concrete on site.

Given below some pros and cons of ready-mix concrete :-

Pros of ready-mix concrete:

a. With Ready Mix Concrete (RMC), the construction process becomes fast with programmed delivery at site, automated operation with subsequent economy.

b. The costs of labor and site supervision are decreased significantly.

c. RMC maintains uniformity in quality with perfect & computerized control of sand aggregates and water according to mix designs.

d. Formation of RMC facilitates reducing cement wastage because of mass handling.

e. While producing RMC, no pollution occurs.

f. By using RMC in project, project time is curtailed significantly and it leads to huge savings in all phases.

g. Perfect control and economy in applying raw material leads to saving of natural resources.

Cons of Ready-Mix Concrete

Following are the cons of ready-mix concrete:

 1. The materials are batched at a main plant, and the mixing starts at that very plant. So the transition time from the plant to the site covers longer distances and becomes complicated. Some sites locate at too remote distance, which may cause risk for ready mix concrete to be useless owing to setting.

2. It will create extra road traffic. Normally, Ready Mix Trucks are bigger in size and may take huge space in the road that will obstruct other traffic. Besides, access roads and site access should have the capacity to bear the heavier weight of the ready-mix truck plus load. (Green concrete is approx. 2.5 tonne per m³.) This issue can be resolved by using so-called ‘mini mix’ companies which employ smaller 4m³ capacity mixers to visit more-restricted sites.

3. Concrete’s constrained time span among mixing and curing signifies that ready-mix should be arranged within 210 minutes of batching at the plant. The time span can be rectified with modern admixtures perfectly, though, the amount and type of admixture that is included with the mix is very crucial.

Read more

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Published By
Arka Roy
http://www.constructioncost.co
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Various jobs opportunities for civil engineers in Dubai

In this video, you will get detailed information of job vacancies for civil engineers. The location of the job is Dubai.

Quantity Surveyor: A position is vacant for experienced and qualified quantity surveyor in Dubai.

Abilities:

At least 3 to 6 years working experience in quantity surveying field.
Ability to work autonomously along with skill to write correspondence.
The candidate should contain minimum a diploma or similar education.
The candidate should have outstanding communication and interpersonal skills.
Knowledge with interior fit-out-industries will be treated as extra qualification.

Duties and responsibilities :-
Quantity measurement
Deal with costing
Make quotations

To apply for the job, go through the following website www.indeed.ae

Civil Engineer: A position is vacant for knowledgeable civil engineer in UAE.

Abilities:
Accomplish technical and feasibility studies and sketch out blueprints as per technical specifications.
Give useful suggestions and solve out any prospective issues and deficiencies.

Deal with the consequential structures and services to be utilized.

Ability to control budget and buy equipment/materials.

Duties and responsibilities
Project Management and supervision skills
Sound communication and interpersonal skills
One year working experience in the jobsite.
BS/MA in Civil Engineering

This post is intended for male candidates only.

To apply for the job, go through the following website www.jobsara.com

Watch the following construction video to get more jobs information.

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Published By
Arka Roy
http://www.constructioncost.co
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SO-Foundation, a powerful construction program for finding out the bearing strength of shallow foundation

Soil Office, the leading developer of various geotechnical engineering software, has created SO-Foundation. It is a powerful construction program that can be used to compute bearing strength of shallow foundations in view of both “shear failure” and “settlement”.

The software applied Hansen, Meyerhof, Vesic, Terzaghi and Eurocode methods to find out the shear failure. The are also several options to work out elastic and consolidation settlements.

The software also provides complete detailed reports.

Features – General

– Provides information on near about 20 soil layers.
– User can get notification on the common ranges concerning input parameters.
– Pressure isobars are computed and produced under footings.
– Defines bearing strength of shallow footings (Spread, Continuous and Mat) with various dimensions in view of both shear failure and settlement (Elastic and Consolidation).
– Estimate settlement according to the tolerable pressure.
– Estimate modulus of subgrade reaction.
– Estimate and creation of modulus of subgrade reaction contour on the footing surface.
– Export results to MS Excel format.
– Demonstration of calculation report containing adequate details.
– Formation of profiles for the preferred settings.
– Saving files with a smallest size.

Shear failure:

– Utilization of 5 methods, Eurocode, Hansen, Meyerhof, Terzaghi and Vesic.
– Modification of general factor of safety.
– Strength reduction factors are attributed for friction angle and cohesion, independently.
– Water effect is used with 2 methods.
– Inclusion of large footing effect in calculations.

Settlement:

• General
– Modification of permissible settlement by user’s will.

– Valid depth in settlement calculation is defined as the least amount of below:
a. Pressure isobars (based on each of the methods Boussinesq, Westergaard and Approximate 2V:1H) or a multiple of foundation width.
b. Depth of the rigid layer.

To download the software and gather more information, click on the following link soiloffice.com

Watch the following video for online demonstration.

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Published By
Arka Roy
http://www.constructioncost.co
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16-Hour Structural Engineering (SE) Practice Exam for Buildings (STBDPX3), 3rd Edition – An exclusive book for civil engineering students

Joseph S. Schuster,SE, PE and Simpson Gumpertz & Heger (SGH) have jointly written an exclusive construction e-book known as 16-Hour Structural Engineering (SE) Practice Exam for Buildings (STBDPX3), 3rd Edition.

The book is available in paperback version and contains 184 pages. In the book, there are 40-problem, multiple-choice breadth exams and two four-essay depth exams in accordance with the NCEES SE exam’s format and specifications.

It takes an average of six minutes to resolve the multiple-choice problems provided in the book. It takes 1 hour to resolve the essay problems.

Extensive step-by-step solutions are provided for all problems with precise and well-organized problem-solving approaches. The solutions to the depth exams’ essay problems apply blue text to recognize the information to be expected for being contained in your exam booklet to obtain full credit. The additional content applies black text to makeyour understanding of the solution process better.

16-Hour Structural Engineering (SE) Practice Exam for Buildings will provide the following benefits to the students:

• Make them ready for all four exam components
• Associate appropriate theory to exam-like problems
• Recognize perfect problem-solving approaches

• Explore with the exam-adopted codes and standards
• Solve problems under timed conditions

The following referenced codes and standards are used in the book :-

• AASHTO LRFD Bridge Design Specifications (AASHTO)
• Building Code Requirements and Specification for Masonry Structures (TMS 402/602)
• Building Code Requirements for Structural Concrete (ACI 318)
• International Building Code (IBC)
• Minimum Design Loads for Buildings and Other Structures (ASCE/SEI7)

• National Design Specification for Wood Construction ASD/LRFD (NDS)
• North American Specification for the Design of Cold-Formed Steel Structural Members (AISI)
• PCI Design Handbook: Precast and Prestressed Concrete (PCI)
• Seismic Design Manual (AISC)
• Special Design Provisions for Wind and Seismic with Commentary (NDS SDPWS)
• Steel Construction Manual (AISC)

To purchase the book online, click on the following link www.thestructuralengineer.info

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Published By
Arka Roy
http://www.constructioncost.co
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Civil Engineering – The newest construction app for engineering science students & professional

Civil Engineering is a powerful civil engineering app that includes the fundamentals of civil engineering.

There are various types of crucial topics, notes, materials, videos included in the app.

The civil engineering students can download the app and utilize it as reference material & digital book for civil engineering program & tech degree courses.

This app is very useful for the following sectors :-

a. Transportation
b. Coastal engineering
c. Structural
d. Environmental
e. Geotechnical
f. Construction
g. Architectural
h. Engineering mechanics

This handy Civil Engineering App involves 60 topics supported with detailed notes, diagrams, equations, formulas & course material. The topics are segregated in 5 chapters. The app is specifically designed for all the engineering science students & professionals.

The app offers quick revision and reference to some vital topics like a detailed flash card notes. With this app, the student or a professional can easily avail interview for jobs.

The app can be applied to track your learning, set reminders, edit the study material, adjoin favorite topics as well as spread the topics on social media.

All the topics are supported with diagrams, equations and other forms of graphical representations to simplify the process for learning and understanding.

Civil Engineering Basics is a vital portion of engineering education courses and technology degree programs at different universities.

One can download the app from google play store by clicking the following link play.google.com

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Published By
Arka Roy
http://www.constructioncost.co
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Some useful processes to resist corrosion in steel reinforcement

In order to resist damage and failure of concrete structures, steel reinforcement Corrosion control methods are undertaken. Near about forty percentage of collapsing of concrete structures occur due to corrosion of inner steel reinforcement.

There are various reasons for the corrosion of steel reinforcement which range from the quality of concrete, atmosphere, and quality of construction practices.

Initially, it is required to arrange superior quality of concrete via good construction practices to manage corrosion in rebar. To manage rebar corrosion, the focus should be given on various factors like the quality of concrete materials, mixing, placing and compaction methods and good workmanship.

Quality control in concrete construction minimizes the scopes of corrosion. By applying the following methods, the corrosion of reinforcement bar can be controlled efficiently.

Steel reinforcement corrosion control processes :-

• Cement-Polymer Composite Coated Rebars (CPCC)
• Fusion Bonded Epoxy Coated Rebars (FBEC)
• Corrosion Resistant Steel Deformed Rebars (CRSD)

1.Cement-Polymer Composite Coated Rebars (CPCC): Cement polymer coat rebar implanted in concrete are encircled through an alkaline medium. A cement base coating is very effective in controlling reinforcement corrosion. Two coats of cement polymer are used on rebar like first Primer coat and a sealer coat.

Products contained in Cement Polymer Composite Coated rebar are:

• De-rusting Solution
• Alkaline Powder
• Phosphating Jelly
• Inhibitor Solution
• Sealing Solution

2. Fusion Bonded Epoxy Coated Rebars (FBEC): Fusion bond epoxy coat rebar is formed with 100% solid delicately grounded fuse powder particles. These particles are dissolved through heating to develop a permanent adherent film. There is not any passivating primer film contained in FBEC rebars. It produces a medium of weakness in the path of an intimate bond among rebar and alkaline concrete.

Epoxy provides the coating to the rebar with the following :-

• Melts
• Flows
• Gels
• Cures
• Cools
• Adheres to coating

3. Corrosion Resistant Steel Deformed Rebars (CRSD): Under this method, an initial layer of protective oxide or rust is created to resist the corrosion. On general rust on normal rebars, the CRSD rust is passive, persistent and self-renewing. The preventive oxide is fine texture, tightly adherent and a barrier to moisture, oxygen, carbon dioxide, Sulphur dioxide. The chloride provides protection against corrosion.

It is suggested to employ corrosion resistance Steel Deformed Rebars to resist corrosion of concrete structures, damage, and collapsing of concrete structures.

Article Source : www.cforcivil.com

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Published By
Arka Roy
http://www.constructioncost.co
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How to design reinforced & unreinforced concrete and masonry gravity retaining walls as per Euro & BS codes

MasterKey Retaining Walls Design provides the most extensive program that can be used for creating the design of both reinforced and unreinforced concrete and masonry gravity retaining walls as per Eurocode 7, BS 8002, BS 8110, CP2 IS 325 and BS 5628 Part1 and Part2. Highways design by adhering to BD 30/87 & BD37/01 is also comprised.

The users can easily use MasterKey Retaining Walls with a short learning curve.

With it’s collaborative nature, it is possible to instantly view the effects of inserting loads, piers, ties and props, rectifying reinforcement as well as the wall geometry or soil properties. MasterKey Retaining Walls offers you complete control over the design method, allowing you to improve the efficiency of the wall.

• Design Codes: British, Irish & Eurocode design
• Concrete retaining wall design
• Masonry retaining wall design
• Cavity, bed-joint and pocket reinforcement in masonry walls
• Design to Eurocode 7, BS 8002 or CP2
• Design to Highways BD 30/87 & BD 37/01
• Stiffened and unstiffened walls including buttressed and counterfort walls
• Layered soil modelling
• Water table and horizontal surge force
• Cohesive and granular soils
• Sloped or stepped front and back faces

• Upstand above top of soil
• At rest earth pressure
• Multiple props, ties and spring supports
• Line loads on wall, base and embankment
• Partial distributed surcharges

• Exports DXF details
• Exports details to MasterRC for AutoCAD
• Schedules using the MasterRC Scheduler

In order to download a full functioning 30-days trial version, click on the following link masterseries.com

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Published By
Arka Roy
http://www.constructioncost.co
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