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

Define water jets for underwater inspection of bridge, Define Water jets fo...

Define Water jets for underwater inspection of bridge? These tools are widely used and produce a bright metal finish in one operation. Grit entrainment is available and makes t

#surveying & levelling, expressions for calculating corrections for earth c...

expressions for calculating corrections for earth curvature

Machanics, write a short on vector representation of force(addition and sub...

write a short on vector representation of force(addition and substraction )

Matlab program, for calculating the bending moment in which the loading and...

for calculating the bending moment in which the loading and the length of continuous beam is taken from the user

Test for determination of uitimate compressive strength, Q. Test for determ...

Q. Test for determination of Ultimate Compressive Strength The test pieces are to be loaded either till the failure of the steel laiminate or till the irreversible squeezing ou

Assignment, I need to find support reactions at O for the beam with a distr...

I need to find support reactions at O for the beam with a distributed load, a 6 kN moment couple at A and a 3 kN axial load as shown in picture.

Explain terzaghi theory of bearing capacity, a) Explain Terzaghi's theory o...

a) Explain Terzaghi's theory of bearing capacity of shallow strip foundations. Determine the three bearing capacity factors and give their values for  Φ  = 0' case. (b) Descreib

Describe principles of river protection works, Q. Describe Principles of ri...

Q. Describe Principles of river protection works? Determination of design discharge for a bridge is sometimes required to be based on flood marks left during unprecedented abno

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