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By applying weight functions to put different failures together in a failure zone, the shear strength of concrete hollow block masonry under combined shear and compression loading, which including three typical failures, is presented. Comparative result is shown that the calculated strength agreed well with the experimental results.
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Technical Specification: Technical specification of Hollow Concrete Blocks Confirming to IS: 2185 (Part 1): 2005 is as under: Physical Requirements:- 1. Blocks Density The block density of hollow concrete blocks, being the average of three units s...
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The materials used in producing hollow concrete blocks include Portland Pozzolan Cement from Semen Padang Company and fine sand from the Krueng Aceh River with the physical properties and grading of the sand shown in Table 1, Table 2 respectively. The hollow concrete blocks were designed with no slump sand-cement based on ACI 211.3R-02 (2009) and the three produced …
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Compressive strength of concrete block in N/mm2 and Kg/cm2. Concrete is made of cement sand and suitable aggregate and it may be converted into precast masonry unit or concrete masonry unit or CMU such as hollow and solid normal, light and denser weight concrete block of suitable size used for load bearing and non load bearing units for house construction, retaining wall security barriers etc.
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respectively [19,20]. It was also observed that the shape of plastic waste induced also has effects on the strength of concrete [21]. Despite the increasing studies on plastic-infused concrete, there is a dearth of studies concerning masonry units such as concrete hollow blocks (CHB) – a mortar structure still widely used around the world.
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Here are the details: Sample: Ordinary Concrete Hollow Blocks. Size: 340 L x 90 W x 20 face thickness x 25 web thickness. Weight: 8.21 kgs. Maximum load: 207, 573 N. Compressive Strength: 1060 psi.
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The Compressive Strength Testing of Concrete Hollow Blocks. After the 7, 14, 21, and28-day curing periods, the sample CHBs were brought to the Engineering Laboratory Building, College of Engineering, UEP, where the compressive strength testing was conducted using a Universal Testing Machine (UTM).The compressive strength testing ...
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Compressive Strength and Bulk Density of Concrete Hollow Blocks (CHB) Infused with Low-density Polyethylene (LDPE) Pellets Alvin Joseph Santos Dolores, Jonathan David Lasco, Timothy M. Bertiz, Kimjay M. Lamar
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Density of block (3 blocks) Compressive strength of block (8 blocks) Dimension Measurement All blocks should be checked in this step. The length, width and height are measured with steel scale. If it is a hollow block, then the web thickness and face shell are measured with caliper ruler.
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Actual tests of compression strength of hollow concrete blocks are difficult to make, because it is almost impossible to apply the load uniformly over the whole surface, and also because a block 16 inches long and 8 inches wide will bear a load of 150,000 to 200,000 pounds, or more than the capacity of any but the largest testing machines.
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The commpressive strength of hollow concrete blocks should be 5N/mm2. This strength is enough for the non-bearing walls.
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Concrete hollow blocks are lightweight hence used in the construction of homes in earthquake-prone areas. These blocks are more cost-effective than other traditional wall systems or wall construction systems. It is high quality, high strength, uniform size, and shape.
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09. Presence of rough texture on concrete blocks provides good bonding between cement mortar and concrete blocks. 10. It is possible to construct a thin wall by using hollow blocks. Therefore, it helps to save space and increase the floor area or …
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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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The Compressive Strength Testing of Concrete Hollow Blocks. After the 7, 14, 21, and28-day curing periods, the sample CHBs were brought to the Engineering Laboratory Building, College of Engineering, UEP, where the compressive strength testing was conducted using a Universal Testing Machine (UTM).The compressive strength testing ...
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Hollow and solid concrete blocks shall be sound and free from cracks, broken edges, honeycombing, and other defects that would interfere with the proper placing of block or impair the strength or performance during construction. 2. Dimensions and Tolerances. The concrete block units shall be made in sizes and shapes to fit different ...
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