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

Pavement layers, What role does modulus of elasticity play in the pavement ...

What role does modulus of elasticity play in the pavement layer arrangement

WATER SUPPLY, THE DESIGN PERIOD AVERAGE DAILY DEMAND CALCULATE. THE DESIGN ...

THE DESIGN PERIOD AVERAGE DAILY DEMAND CALCULATE. THE DESIGN DEMAND FOR THE WATER RETICULATION OR DISTRIBUTION PERIOD.

Define fixed instrumentation - sounding or sensing devices, Define Fixed in...

Define Fixed instrumentation - Sounding or Sensing Devices? It is possible to monitor local scour at pier or abutment using fixed instrumentation as an alternative to the sound

#title.cement factor, Aplease provide tables for each design mix and also t...

Aplease provide tables for each design mix and also the, high early strengh.l thanks

What are advantages and disadvantage of varnishing, Q. What are advantages ...

Q. What are advantages and disadvantage of varnishing? Varnish is a clear pale solution of a resinous substance ( like amber, common resin, copal, lac, or shellac 0 dissolved i

Effect of prestress in an reinforced cantilever beam, Effect of prestress i...

Effect of prestress in an reinforced cantilever beam The effect of prestress in an ordinary reinforced cantilever beam and a prestressed concrete (PSC) beam. When no load is pr

Survey, explain ranging and reciprocal ranging

explain ranging and reciprocal ranging

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