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

Bulking of sand, what is the permissible limit of sand

what is the permissible limit of sand

Aggregaters, What Aggregate''s class III

What Aggregate''s class III

Method of section, III. Calculate the magnitude and sense of the member for...

III. Calculate the magnitude and sense of the member forces BC, BG and HG using the method of sections

Air infiltration, Using Matlab/ Simulink software, verify the heating requi...

Using Matlab/ Simulink software, verify the heating requirement (kW) for the building because of  air infiltration and natural ventilation. Note that this needs you to estimate air

Tension members, Tension Members: You have learnt about the Standard s...

Tension Members: You have learnt about the Standard specification for structural steel and various types of structural steel rolled sections. Different types of loads, stresse

Tack rivet, tack rivet figures with connections

tack rivet figures with connections

Define scour - underwater inspection of bridges, Define Scour - Underwater ...

Define Scour - Underwater Inspection of Bridges? Whenever a bridge crosses a waterway, even a small or intermittent one, scour is a dangerous effect that can damage bridge pier

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