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

Number of segments for segmental linings in tunnelling, Q. Number of segmen...

Q. Number of segments for segmental linings in tunnelling? For the construction of tunnels by segmental linings, choice of the number of segments affects the durability and cos

Determine the term- shrinkage of concrete, Determine the term- Shrinkage of...

Determine the term- Shrinkage of Concrete Shrinkage of concrete is primarily due to gradual loss of moisture which results in change in volume. The shrinkage of concrete depend

Define role of diver in underwater inspection of bridge, Define Role of Div...

Define Role of Diver in Underwater Inspection of Bridge? Diver's role is primarily to point out a potential scour problem. The diver can use one of the following equipment to m

Surveying, what are the basic two division of surveying

what are the basic two division of surveying

Purpose of setting minimum amount of longitudinal steel area, Q. Purpose o...

Q. Purpose of setting minimum amount of longitudinal steel areas for columns? In some design codes it specifies that area of longitudinal steel reinforcement must be not less

Calculate the amount of cubic yards of soil, A proposed building site requi...

A proposed building site requires 135,000-ft 3 of imported fill.  A borrow site is located 5-miles Northeast of the project site where the soil has a shrinkage of 16%.  The amount

Uses of alloys in daily life , What are the uses of alloys in daily life an...

What are the uses of alloys in daily life and how are alloys made? Ans) Alloying is not always done to make a 'superior' material, but to produce materials having a desired requ

Construction mesurment, Measurement quantity of excavation, concrete, formw...

Measurement quantity of excavation, concrete, formwork as my assignment brief.

Why is the statue of liberty made of copper, Copper is a very durable mater...

Copper is a very durable material when exposed to weather and is soft enough that it can be simply molded to curved shapes like those in the Statue of Liberty. It is also tradition

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