Penetration resistance tests on solid offers a method for deciding relative qualities of cement in a similar structure or relative quality of various structures. In view of nature of types of gear, it cannot and ought not be relied upon to yield total estimations of quality. ASTM C-803 gives this standard test strategy titled “Penetration […]
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The workability requirements for various concrete placement is explained below: The prerequisites of concrete workability changes along with range of assortments of construction. Workability of concrete is determined by highly skilled design engineers depending on the concrete strength necessities, the requirements of durability and the for the easiness of the construction at site. For the […]
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Aim: To calculate the splitting tensile of concrete Theory: Tensile strength of concrete is the most fundamental and significant property among many. Splitting tensile strength test on concrete cylinder is a technique to resolve the tensile strength of concrete. The concrete is very fragile in stress because of its fragile character and is not anticipated to oppose […]
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Objective: To ascertain the modulus of elasticity of concrete Sample: Concrete calendar 15 cm diameter and 30 cm long Process Setting up of the Compressometer (i) Assemble the top and base casing by keeping the spacers in position. (ii) Put the pivot rod on the sinks and bolt them position. (iii) Put the tightning screws […]
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PaperCrete is basically a sort of mechanical quality paper maché made with paper and cardboard, sand and Portland concrete. There are numerous assortments of PaperCrete conceivable. Basically, the constituents when blended in various extents result in PaperCrete of differing properties. The essential constituents of PaperCrete are: Paper: normally squander paper, for example, utilized newsprint or […]
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Manufacturing Mould: Moulds will be manufactured utilizing mellow steel plates and mild steel plots for hardening the plates. The shape ought to be either fixed sort or (box with four side dividers settled at corners, and top and base open) or split sort. Split sort might be either singular or group mould. Where the compression […]
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When the admixtures are compatible with the concrete, they should meet the following quality requirement: Characteristics of admixture: The data sheet should give away essential characteristic details like the kind of admixtures, on hand forms, the basic elements utilized, particulars on dosage and its utilization techniques, safety measures to be undertaken and its adherence with […]
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If concrete is impervious, or in other words, its permeability is not high then acidic agents and corrosive agents cannot infiltrate and attack it. Concrete usually has two varieties of pores, which establish extend of permeability. These are known as capillary pores (with a width ranging between 0.01 to 10 micron) in the cement, paste […]
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The utilization of LWC (Lightweight concrete) has been a component in the construction business for quite a long time, yet like other material the expectancy of potency of the execution have raised and now we are expecting a steady, dependable material and unsurprising attributes. Structural lightweight concrete has a set up thickness or denisty (unit […]
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Objective: To assess the workability of concrete (using compaction factor test) Apparatus Compaction factor apparatus’ trowels Hand scoop (15.2 cm long) Steel rod or other handy equipment (1.6 cm diameter, 61 cm long rounded at one end) and a balance. Sampling Concrete mix (M15) is blended according to the specified mix design in the laboratory. […]
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