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

leveling, what are the diff.types of levels used in levlin

what are the diff.types of levels used in levling

Acid test - tests on stones, Acid Test: This test is usually carried...

Acid Test: This test is usually carried out on sand stones to examine the presence of calcium carbonate that weakens the weather resisting quality. In this particular  test,

Chain survey, Instruments used in chain survey

Instruments used in chain survey

What do you mean by elastomeric bearings, Q. What do you mean by Elastomeri...

Q. What do you mean by Elastomeric bearings? Steel bearings are good but suffer from problems of corrosion and high level of maintenance. Due to these problems of steel bearing

Finite elemenst, can you do finite elements using the weighted residual for...

can you do finite elements using the weighted residual formulation-galerkin method?

Builiding, how to bulid a bilding?

how to bulid a bilding?

Doors, rolling steel door

rolling steel door

Rapid sand filter, use of rapid sand filter in grey water treatment units

use of rapid sand filter in grey water treatment units

Explain the installation of shock transmission unit, Explain the Installati...

Explain the Installation of Shock Transmission Unit? It is not always necessary to install STUs while a structure is under construction but the holding down anchor bolts and th

Laplace transform, Using Laplace transfom, the following differential equat...

Using Laplace transfom, the following differential equation d y dy dt reduces to the algebraic equation of the form Resolve y(s) into partial fractions

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