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

Determine the magnetic declination at a place, Example : Determine th...

Example : Determine the declination at a place, if at noon the magnetic bearing to the sun is (a) 358° (b) 185° Solution: (a) Referring to given figure (a) since the ma

Digit of cells for concrete box girder bridges, Question How does an engine...

Question How does an engineer determine digit of cells for concrete box girder bridges ? Answer If depth of a box girder bridge exceeds 1/6 or 1/5 of bridge width, then it is o

Theory of elasticity and plasticity, derivation for strain energy stored in...

derivation for strain energy stored in a body due to torsion

Types of limes and their properties, Types of Limes and their Properties ...

Types of Limes and their Properties The limes are classified in three categories as fat lime, hydraulic lime and poor lime: (1) Fat lime: It is composed of 95 percentage o

Remedial measures for problems in turbid water - absorption, Define Remedia...

Define Remedial measures for Problems in Turbid Water - Absorption? The process of absorption of light can be overcome by using higher powered lighting, or by using more light

Engineering Mechanics, the jet transport B is flying north with a velocity ...

the jet transport B is flying north with a velocity vB = 600 km/h when a smaller aircraft A passes underneath the transport headed in the 60 degree direction shown. To passengers i

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

Concrete, describe in detail the uses of concrete

describe in detail the uses of concrete

What is preset in bridge bearing, Q. What is Preset in bridge bearing? ...

Q. What is Preset in bridge bearing? 'Preset' is a method to decrease the size of upper plates of sliding bearings in order to save cost. Normal length of an upper bearing plat

Roads, how to calculate number of passes while compaction

how to calculate number of passes while compaction

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