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

Find out load carrying capacity, Q.for ISMB200 having 6.70 m span simply su...

Q.for ISMB200 having 6.70 m span simply supported so find out load carrying capacity.

How the raft is designed as a floating foundation, A raft, 9 m × 27 m, is f...

A raft, 9 m × 27 m, is founded at a depth of 3 m in sand with a value of  N = 25 up to great depth. Verify the total load which the raft can support. If the raft is designed as

Grade of cement, Grade of Cement: In India, the following grades of c...

Grade of Cement: In India, the following grades of cement are used for roads : Ordinary Portland Cement (OPC) Grade 33 Grade 43 Grade 53 Portland Pozz

Write short notes on impact test, Q. Write short notes on Impact Test? ...

Q. Write short notes on Impact Test? Impact test for ballast shall be carried out using Impact testing machine. The test sample shall be prepared out of ballast so as to con

Surveying, what are the basic two division of surveying

what are the basic two division of surveying

Wet mix macadam - road pavements, Wet Mix Macadam: For heavily traffi...

Wet Mix Macadam: For heavily trafficked highways, the granular bases are constructed using Wet Mix Macadam (WMM). The WMM is a specification in which well graded aggregate is

Plane tabling, difference between compass suveying and chain surveying

difference between compass suveying and chain surveying

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