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Question
In case of concrete pavement, why is requirement of 95% by mass of quartz grains are specified in contract?
Answer In universal Specification of Civil Engineering, in Clause 10.09 it states "Fine aggregate for concrete shall be usual river-deposited sand consisting of at least 95 percent by mass of quartz grains". Aim of such requirement is to control excellence of river sand. As quartz is a strong and hard material, using a far above the ground percentage of quartz in aggregates of concrete is able to enhance strength and durability of surface texture of concrete carriageway.
In adding, such specification needs a high percentage of quartz content, thereby dropping the probability of being there of impurities as shell.
Question-Why is span length ratio of end span, approach span to its neighbouring inner spans typically about 0.75? Answer-From aesthetic point of view, odd number of span
earth dam design and its force
CRACKS
Micro-organism ratio: Determine the F/M ratio (in units of lbs BOD5/lb MLSS-day) using data provided in the above example problem. Solution By definition, F/M = Q S
Measurement quantity of excavation, concrete, formwork as my assignment brief.
Steps to determine the brake (bhp) and motor horsepower (mhp): 1) Determine water horsepower (whp). h A (Qgpm) (SG) / 3956 OR h A (Qcfs) (SG) / 8.814 2) Apply the pump
Explain the Frame member's effective lengths 1. Effective length is a product of an effective length factor (k) and the actual length of the column. 2. k depends on th
The maximum dry density and optimum moisture content of a soil from standard proctor's test are 18 kN/m 3 and 16% respectively. Compute the degree of saturation of the sample,
Q. Evaluate the Length of guide bund? For encouraging axial flow through the bridge, upstream length of guide bund may be kept 1.0 to 1.5 times the bridge length and downstream
CASTE DISCRIMANIMATION
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