Most aggregate size advantage structures, Civil Engineering

Assignment Help:

Question
Design of concrete structures, normally most aggregate sizes are adopted with scopes from 10mm to 20mm. Does an increase of most aggregate size advantage structures?

Answer
To 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.


Related Discussions:- Most aggregate size advantage structures

Dimples in polytetrafluoroethylene, Dimples in Polytetrafluoroethylene (PTF...

Dimples in Polytetrafluoroethylene (PTFE) PTFE is a fluorocarbon polymer that possesses good chemical resistance and can function in a wide range of temperature. The most signi

Water retaining structure, Question Why do BS8007 specify permissible c...

Question Why do BS8007 specify permissible crack width of water retaining structure as 0.2mm for severe, extremely severe exposure? Answer For break width less than

Show the filter below the revetment, Q. Show the filter below the revetment...

Q. Show the filter below the revetment? A filter placed between the revetment / protection works at the surface and the soil bed below the revetment / protection works. Main fu

Explain brake and electrical horsepower, Explain Brake and Electrical Horse...

Explain Brake and Electrical Horsepower Brake horsepower (bhp) = whp/pump efficiency Electrical or motor horsepower (ehp) or (mhp) = bhp/motor efficiency Friction of heat

Survey, How to find included angle during partical

How to find included angle during partical

Construction management, pert disadvantages of software support, datacolle...

pert disadvantages of software support, datacollection , interpretation of results issues

Rectangular panel inside a false work, Question In erection of false work, ...

Question In erection of false work, for a rectangular panel inside a false work would it be braced all along two diagonals ? Answer While a rectangular panel is focus to the

Surveing, what is importance of positioning in different types of engineeri...

what is importance of positioning in different types of engineering?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd