Soil Reinforcement And It’s Application

This construction article is based on a B.Tech thesis for Civil Engineers. The article focuses on Soil Reinforcement Method and its application mainly the study of the behavior of centrally loaded strip foundation on multi layered geo-grid reinforced sand bed.

Soil Reinforcement refers to a robust and reliable method for improving the quality and strength of soil.

The hardened soil or mechanically arranged earth is a solid soil fill, reinforced with the study of pliable components like geogrids, geotextiles, metal bars and strips. It is currently developed in big development industry for building the structures like holding dividers, banks over delicate soil, steep inclines and so on.

The reinforced soil belongs to the soil in which its engineering behavior is enhanced by delivering the metallic, synthetic or geogrids.

The provision of geogrid reinforcement renders anisotropic mechanical properties, improve stiffness, tensile strengths as well as bearing capacity to the foundation soil.

Read More.

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Published By

Rajib Dey

www.constructioncost.co

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How to create a prestressed concrete unit on a prestressing concrete plant

Go through the following construction video that shows how to develop a prestressed concrete unit (Double T) on a prestressing concrete plant.

Double T is a multipurpose prestressing unit usually applied in parking structures but also be utilized in various buildings together with office buildings, industrial buildings etc. The Double Ts contain the potentiality of supporting span extending to 60ft as well as upto 120ft.

Step 1:
The initial step is to set up the necessary forms (here double T) as soon as the cleaning is completed. Under this construction video, a bed is arranged for 5 double T units having length 60ft long. Self stressing form is ideal for prestressing which can deal with prestressing compression force as well as the eccentricity of the strands.

Step 2:
The crew members can arrange strands in the form and transit them through prestressing plate. Strands are placed constantly over 5 units and later on segregated with the space provided by the dividers.

Step 3:
Strands already set in 2nd step are then tensioned to about 2 to 5 kips on the basis of gauge pressure reading. Here a mark is given on strands once the preload is applied. The strands are then tensioned and noted through gauge pressure on hydraulic pump. Quality control Technician then verifies elongation of strands against theoretical elongation. It necessitates that force on gauge and elongation measured should be equal with 5% tolerance limit. If it fails then strand should have been detensioned and then tensioned again.

For more information visit this link.

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Published By

Rajib Dey

www.constructioncost.co

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Usefulness of Construction Geometry for Roof Framing

Michael Nauth presents an informative construction video on construction geometry with Pythagoras' Theorem and Similar Triangles and Trigonometry. The geometries can simplify the estimation of roof framing.

Construction Geometries are used to draw shapes, angles or lines precisely.

The construction phase will be completed successfully with proper knowledge of fundamental geometry. Points, lines, measurements and angles are frequently utilized to lay out the building by following the architect drawings.

These elementary geometry elements are utilized by the grading subcontractor to outline the land and assure accurate drainage from property.

The concert, framing and roofing subcontractor applies strings and plums to create the blueprint. The roofers apply pitch and angles to assure drainage of rainwater.

The structural engineers utilize geometry in their design with the intension of estimating the spacing of the columns and beams for detecting exact strength of the building.

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Published By

Rajib Dey

www.constructioncost.co

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How to compute the design moment strength of a singly reinforced concrete beam

This construction video is made on Reinforced Concrete Design and it narrates the method for creating the estimate of the design moment strength concerning a singly reinforced concrete beam following the ACI Code.

The video highlights the following :-

The video highlights the following :-

i) How to draw the strain and stress profile at ultimate

ii) Force equilibrium to estimate neutral axis depth

iii) Examine assumptions (i.e. verifying steel yield) and decide phi

iv) Compute nominal moment and design moment

Go through this supportive article to learn more

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Published By

Rajib Dey

www.constructioncost.co

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Precast Concrete Advantages

In Precast concrete, a concrete member is casted and cured in a recyclable mold or "form" under a controlled environment and transmitted to the construction jobsite and elevated into place. On the other hand, the standard concrete is poured into site-specific forms and cured on site.

Precast concrete provides the following benefits :-

1. The precast concrete is developed with advanced quality concrete with greater technical control on the production of concrete in factory.

2. The material of precast concrete contains essential properties of thermal inertia (facilitating a more persistent temperature both in cold and hot regions) and acoustic insulation

3. The thermal mass indigenous to precast concrete makes itself energy efficient and minimizes the heating and cooling peaks and loads

4. Pre-stressing can be done smoothly to diminish the size and number of the structural members.

5. It is not mandatory to have joints in the precast construction.

6. Precast concrete structures are totally reusable and reduce the whole life cycle impact on the environment

7. Precast Concrete is completely safe to withstand impacts, blasts and natural disasters like earthquakes, tornadoes and floods.

8. Precast Concrete is developed with natural raw materials likw stones, gravels, sand, cement and these materials are accessible to almost everywhere and in a bulk quantity

9. The moulds used for generating the precast units are made of steel containing perfect dimension in all directions. These moulds are long-lasting and can be utilized repeatedly.

10. If necessary, the precast structures can be easily separated and can be used aptly anywhere.

11. Get rid of carrying and accumulating different types of concrete components for cast in situ work while selecting precast members.

12. Various precast units can save huge time for completing a construction quickly.

13. While setting up precast structures, the amount of scaffolding and formwork is significantly minimized.

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Published By

Rajib Dey

www.constructioncost.co

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How To Design Column With Excel

This excellent construction video will be very useful for Civil Engineers to learn the step-by-step processes for designing various types of axially loaded RCC column. By applying this construction sheet the reinforced concrete designers can simplify the designing the reinforced concrete columns like (braced, unbraced, slender, short, pinned, fixed etc).

The designers can estimate the necessary column reinforcement. Verify column for compression, bending and bi-axial bending. The Spreadsheet can also examine column slenderness and applies supplementary moments. It contains column cross-section diagram for recognizing efficiently.

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Published By

Rajib Dey

www.constructioncost.co

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Be familiar with the detailed construction processes to repair a damaged drywall ceiling

By going through this useful construction video, one can learn how to execute patch work to an old building for reforming a drywall ceiling perpetually that has been damaged (cracked) severely. This youtube construction video is presented by the general contractor Tom Silva.

When drywall ceilings get damaged, there should be a dissimilar repair method. Ceiling drywall is denser as compared to the sheets applied for walls.

For minor areas, eliminate as little drywall as possible. For extended damaged areas, pull out the complete damaged area and restore it with a patch with standard drywall repair system.

For the repairing purpose, the following construction elements are required to purchase:
- 5/8-inch plywood
- 2x4
- construction adhesive
- wood shims
- 2-inch-wide painter's tape
- fiberglass mesh tape
- joint compound
- 1 1/4-inch drywall screws

The following construction tools are necessary to start repairing work: - drill/driver, fitted with 3/16-inch-diameter drill bit and 1-inch diameter spade bit
- drywall tip, for driving drywall screws to precisely the right depth
- hammer
- caulk gun
- utility knife
- flat trowel and plaster hawk

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Published By

Rajib Dey

www.constructioncost.co

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How to use plastering machine for plastering and cement of a building

This construction video shows how to get rid of the manual process for plastering and cement of interior and exterior of a building by using a cement plastering machine.

The machine plastering is the modern technique to perform the plastering work quickly with a spray textured finish. It also provides more consistent and cleaner look as compared to manual plastering. The building contractor can find this machine plastering system useful to fulfill the tight deadline timely as well as maintain large projects on schedule.

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Published By

Rajib Dey

www.constructioncost.co

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Building Design and Construction Handbook, 6th Edition

Both Frederick S. Merritt and Jonathan T. Ricketts have published an exclusive construction book alias Building Design and Construction Handbook, 6th Edition.

This construction reference book focuses on each single vital step in building design and construction covering major modifications in design and construction practices, surveys materials, structures, soil mechanics and foundations, building types, hardware, insulation, acoustics, plumbing, and more. The book is considered as a useful resource for architects, engineers, contractors, and others to perform quickly, efficiently and smartly. The book contains some crucial chapters like new design specifications; the recent upgradation in seismic and wind design criteria; new building systems and material; updated building codes throughout; NFPA requirements; and new wood material and codes.

Link for download

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Published By

Rajib Dey

www.constructioncost.co

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How to set up stone veneer to the exterior of your home to give it an elegant look

Rae Young briefly shows through this youtube construction video to set up Stone Veneer in exterior of your home to give an elegant look.

Stone veneer is a useful construction material to be applied as a preventive and fancy covering for outward or inward vertical walls and surfaces. The veneer is generally 1 inch thick and its weight should be below 15 pounds per square foot (73 kg/m2)in order to avoid any extra structural supports.

Stone veneer is built with natural stone and manufactured stone.

Natural stone veneer is developed with real stone that belongs to either collected, i.e. fieldstone, or quarried. The stone is sliced to a uniform thickness and weighted to be applied as a veneer. This stone is usually known as thin stone veneer.

Manufactured stone veneer refers to an attractive building material built to reproduce the look of natural stone. Various types of artificial stones, faux stone, stacked stone veneer, manufactured stone, and flexible stone veneer are also utilized for manufactured stone veneer.

Manufactured Stone veneer is formed by pouring a lightweight concrete mix into rubber forms having various styles. It is then colored to make it real stone. Then the produced stone veneer is added to walls through special mortars.

Flexible stone veneer is produced by dragging a thin layer of stone out of a slab of slate, sandstone, or mica schist. It is supported with a blended material.

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Published By

Rajib Dey

www.constructioncost.co

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