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QuestionDesign of concrete structures, normally most aggregate sizes are adopted with scopes from 10mm to 20mm. Does an increase of most aggregate size advantage structures? AnswerTo answer this query, let's consider the example of a cube. Surface area to volume ratio of a cube is 6/b that b is the length of cube. This implies that surface area to volume ratio reduces with an increase in volume. Then, when size of maximum aggregate is improved, surface area to be soaked by water per unit volume is condensed. Consequently, water requirement of concrete mixes is reduced accordingly so water or cement ratio can be lowered, resulting in a rise in concrete power. Though, increase of aggregate size is also accompanied by effect of reduced contact areas and discontinuities formed by these larger sized particles. In general, for utmost aggregate sizes less than 40mm, effect of lower water requirement could offset drawbacks brought about by discontinuities as recommended by Longman Scientific and Technical in 1987.
thickness of brick masonry
Q. Process of Lubrication of Girder Bearing? Oiling and greasing of bearings is done to ensure that the bearings are well lubricated and working freely to permit expansion and
Question Why is it best to design storm water drains to match soffit? Answer Storm water drains gather storm water in their corresponding catchment areas throughout rainst
Design the 2-span continuous center T-beam, B2, for the floor syetem shown below. The girders that the beam frames into are all 24" wide. Using fc'= 5 ksi, and fy = 60 ksi. The ser
why base isolation is not good for tall building
A concrete batch plant provided the Design Strength for the engineer's mix design to match the project's specification requirement for a 4000 psi Tremie pump mix. The Water-cement
Calculate the weight of the soil. Go to the first screen. 1. Establish the geometry of the member that you want to design. 2. Each member has to be designed separately.
How a water bound macadam road is maintained
A clay stratum of 18 metres thickness was found above a sand stratum when a boring was made. The clay was consolidated under the present overburden pressure. The hydrostatic pressu
Q. Explain about Vierendeel girder? Vierendeel girder design is sometimes adopted in design of footbridges. Traditionally truss design, triangular shape of truss is generally u
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