hollow concrete block ppt


HOLLOW CEMENT CONCRETE BLOCK - Indian Railways

HOLLOW CONCRETE BLOCKS Description of item: Hollow Concrete Blocks Confirms to IS: 2185 (Part 1): 2005. This hollow Concrete Block have open or closed cavity and can be used in the construction of load-bearing and non-load bearing partition walls. Note: This item is already covered in Unified SOR 2010 item no. 056010.

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Hollow-core slab - Wikipedia

A hollow core slab, also known as a voided slab, hollow core plank or simply a concrete plank is a precast slab of prestressed concrete typically used in the construction of floors in multi-story apartment buildings.The slab has been especially popular in countries where the emphasis of home construction has been on precast concrete, including Northern Europe and former socialist countries of ...

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Hollow Blocks - minarprefab.co.in

Introduction: Hollow concrete blocks are substitutes for conventional bricks and stones in building construction. They are lighter than bricks, easier to place and also confer economics in foundation cost and consumption of cement. In comparison to …

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5. Flexural Analysis and Design of Beams 5.1. Reading ...

Block. (Whitney Block) Figure 5.4. Equivalent Rectangular Block (From Nawy's Book). βc Á s f s Strains Stresses c Á c c d h compression side tension side As 0.85f c′ Ts =Asfy Ts d--a/2 a/2 C C c c =αf′ ccb a =β 1 c Require the forces to have the same location: a = β 1 c (ACI 10.2.7)

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Determine the Compressive Strength of Concrete Hollow Blocks

Aug 08, 2016· Minimum Compressive Strength: 5.41 Mpa (800psi) - For individual CHBs ; 6.89 Mpa (1000psi) - Based on the average gross area of 5 units. Non-loading Bearing walls: 4'' CHB. Steel bars: To be laid in mortar 1 part of Portland cement and 3 parts of sand (1:3) Vertical and horizontal spacing as specified by a structural engineer.

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Low Cost Housing Construction Techniques and its Speedy ...

Hollow Concrete Block Load Bearing Walls for Low Cost Housing Construction Use of hollow concrete blocks for load bearing walls has many advantages such as: They are way cheaper than stone bricks we conventionally use. Because they are light in weight, they are …

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Sustainable Management of Waste Coconut Shells as ...

concrete hollow blocks [7], [8]. Moreover, this study intends to provide a new point of view about concrete masonry that serves as an assurance with regards to economic crisis. The result of this study will provide and introduce an alternative construction material with a low production cost. ...

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DESIGN

Principle: Hollow concrete block masonry that uses lesser concrete as compared to solid concrete blocks and provides better thermal insulation due to cavity. Design: • Usable in wall masonry and as roofing blocks along with precast inverted T- beams. •Hollow …

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Chapter 3 DESIGN CONCEPT FOR PRECAST SYSTEM

- Precast concrete beams and precast slabs (reinforced concrete or prestressed) with a composite in-situ topping or Precast concrete walls with precast concrete slab system Figure 3.1 Precast prestressed slabs spanning between walls with composite in-situ topping for 1st storey . 24

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Brick & Block

structural concrete Block Demand for structural concrete block is projected to increase 6.1 percent annually to 2.9 billion units in 2014, valued at $3.9 billion. Growth will derive primarily from increasing construction activity in residential markets, although residential construction will continue to account for a smaller portion of demand.

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Types of concrete blocks | Characteristics Of Different ...

Jul 02, 2018· The concrete block may have a solid or hollow core. The latter has cavities that reduce weight, but also offer less resistance. Concrete blocks in general, are also known as concrete units for masonry (concrete masonry units or CMU in English) or masonry blocks. Types. The standard concrete block is often divided into two or three main varieties.

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MODULE 4 - LIFTING AND RIGGING - FEMA

brackets, and concrete screws. n Understand the proper use of wire ropes, wire rope fittings, end terminations, and tighteners. n Explain the use of slings and sling arrangements. n Describe the use of chains for rigging and lifting. n Determine the effects of critical angles as the relate to …

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EDGE Materials - About

Nov 02, 2016· PFA concrete GGBS concrete Cement-based plaster Precast concrete elements "Ferrocement" wall panel Precast concrete panels/flooring Masonry blocks Autoclaved aerated concrete block (aircrete) Lightweight concrete block Medium weight hollow concrete block Dense concrete block FaLG (fly ash/lime/gypsum) block Local limestone block

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IS 2185-1 (2005): Concrete masonry units, Part 1: Hollow ...

3.11 Webs — The solid sections of the hollow concrete blocks which connect the face shells. 3.12 Width — The external dimension of a block at the bedding plane, measured at right angles to the length and height of the block. 4 DIMENSIONS AND TOLERANCES 4.1 Concrete masonry building units shall be …

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Hollow Bricks - Advantages, Disadvantages, & Sizes

The hollow spaces may be cores, cells, deep frogs, or combinations of these. A core is a void having an area less than or equal to 1.5 inch² (968 mm²), while cells are voids larger than a core. A deep frog is a groove in the bed surface of the brick that is deeper than 3/8 inch (9.5 mm).

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Compressive Strength and Bulk Density of Concrete Hollow ...

the pellets used in the concrete mix was limited to a maximum of 4.75 mm. Moreover, the study utilized the following equipment: concrete mixer, universal testing machine, concrete hollow block molder, and mechanical sieving machine. All the machines used were located at the Department of Civil Engineering Laboratory, UPLB. Figure 1.

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Hollow Concrete Blocks Market Growth & Industry Forecast ...

Introduction of the Hollow Concrete Blocks Market Report. Hollow concrete blocks are rectangular blocks that are made of stone chips, dust, cement and sand. It is used in construction industry in residential and commercial sector. With the increasing industrial projects, the demand for the product is anticipated to grow over the period of time.

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COCONUT SHELL BUILDING BLOCKS - ERNET

27.99 N/mm2 for solid concrete block filled with single coconut shell against 17.1 N/mm2 and23.6 N/mm2 for conventional concrete respectively. This indicates that the coconut shell is a suitable composite and filler for enhancing the strength of conventional solid and hollow concrete.

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Building residential block basements - Concrete Construction

block can give a basement interior an appealing look. And unless soil condi-tions or a high water table prohibit them, concrete block basements pro-vide comfortable living or storage space at about half the cost of above-grade construction. Designing the walls Most block basement walls are de-signed according to empirical design standards.

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Hollow Blocks PowerPoint Templates w/ Hollow Blocks-Themed ...

CrystalGraphics brings you the world's biggest & best collection of hollow blocks PowerPoint templates. WINNER! Standing Ovation Award: "Best PowerPoint Templates" - Download your favorites today!

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Concrete Block | Concrete | Brick - Scribd

A concrete block is one of several precast concrete products used in construction Most concrete blocks have one or more hollow cavities, and their sides may be cast smooth or with a design. Concrete Blocks Concrete blocks The concrete that is commonly used to make concrete blocks is a mixture of powdered portland cement, water, sand, and gravel.

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Concrete Block Characteristics Uses and Problems

CONCRETE BLOCK: CHARACTERISTICS, USES AND PROBLEMS ... - They may be solid or hollow with two or three cores for such stretcher blocks; various other types of standard shapes are also often available and one should consult the local market to determine availability.

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Advantages of Using Concrete Hollow Blocks - An innovation ...

Feb 28, 2018· Concrete hollow blocks are mainly used for their durability, low cost, speed of construction, and eco-friendliness besides others. Here are some of the top advantages of using the concrete hollow block in construction. Highly durable. One of the major advantages of concrete hollow blocks is their high durability.

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HOLLOW BRICKS - slideshare.net

Sep 11, 2015· CONCRETE HOLLOW BLOCKS •Is a large rectangular brick used in construction. • Portland cement and aggregate, usually sand and fine gravel for high-density blocks. • Size -12x8x4 inch BASIC INFORMATION 4. COMMON PARTS 5. …

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Determine the Compressive Strength of Concrete Hollow Blocks

Aug 08, 2016· Minimum Compressive Strength: 5.41 Mpa (800psi) - For individual CHBs ; 6.89 Mpa (1000psi) - Based on the average gross area of 5 units. Non-loading Bearing walls: 4'' CHB. Steel bars: To be laid in mortar 1 part of Portland cement and 3 parts …

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Hollow block: Applications, Advantages & Disadvantages

The use of cement concrete blocks for masonry construction has been developed rapidly which are higher than traditional building materials such as bricks and stones. Standard sizes of hollow block: 39 cm x 19 cm 30 cm: Standard size of hollow concrete blocks. 39 cm x …

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(PPT) Low cost building | rajeev saxena - Academia.edu

materials and low cost technology housing hollow concrete block load bearing wall • cheaper than stone and brick. • easy to handle and light in weight. • better insulation due to air space or void.

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(PDF) Use of Recycled Plastic Water Bottles in Concrete Blocks

Hollow concrete block is a significant kind of masonry units existing for the builders and its . application for masonry construction is increasing continuo usly. (Ahmad et al, ...

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How concrete block is made - material, manufacture, used ...

The first hollow concrete block was designed in 1890 by Harmon S. Palmer in the United States. After 10 years of experimenting, Palmer patented the design in 1900. Palmer's blocks were 8 in (20.3 cm) by 10 in (25.4 cm) by 30 in (76.2 cm), and they were so heavy they had to be lifted into place with a …

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Filler Slab | PDF | Brick | Tile - Scribd

Filler slab is basically a solid reinforced concrete slab with partial replacement of concrete in the tension zone by the filler material. Filler materials include Mangalore tiles, stabilized mud blocks, specially prepared cement cups, burnt bricks, hollow concrete blocks etc. As concrete in tension zone is replaced by filler material of lesser density, dead weight of the slab is reduced.

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