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

Deterioration in steel, How abrasion and earthquake causes deterioration in...

How abrasion and earthquake causes deterioration in steel structures

Transitional jacks designed in pipe jacking projects, Question Why are ...

Question Why are transitional jacks designed in pipe jacking projects? Answer While development of pipe jacking stops, building up of confrontation is extremely

Water waste engineering, wahat is physical characteristic on total suspende...

wahat is physical characteristic on total suspended solid

Concrete surround for drainage pipes, Concrete surround is generally adopte...

Concrete surround is generally adopted for rigid drainage pipes to resist high traffic loads (for instance under shallow covers) and to allow for using pipes with lower strength. F

Explain influence lines-reactions, Explain Influence lines-reactions 1....

Explain Influence lines-reactions 1.  Remove the support under investigation 2.  Displace the beam vertically a distance of 1 unit.  The resulting beam shape will be the sha

Turbines, application of turbines 2 the civil engineering aspect

application of turbines 2 the civil engineering aspect

Functioning of a septic tank in a sewerage disposal system, Q. Write short ...

Q. Write short notes on the following : a) Points to be kept in mind while collecting water samples for testing from tap, stream & T/well separately. b) Where and why foot

What is sedimentation tank, Q. What is Sedimentation tank ? This is a p...

Q. What is Sedimentation tank ? This is a process in which the water is passed through bases or tanks in which the velocity of water is so reduced or water is given a period of

Advantages of continuous multiple-span deck, Q. Advantages of continuous mu...

Q. Advantages of continuous multiple-span deck over simply supported multiple-span deck? Movement joints are generally added to bridge structures to accommodate movements bec

What are the various impurities in water, Q. What are the various impuritie...

Q. What are the various impurities in water? Ans.- Impurities in water - The impurities in water are classified as - i. Suspended Impurities. ii. Colloidal Impuritie

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