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 the crash rate for intersection, An intersection has a total enterin...

An intersection has a total entering traffic volume of 42,000 vehicles per day.  During the past three years, there have been a total of 35 reported intersection-related crashes.

How can designer cater for stability of minor slips, Question Soil nail...

Question Soil nails are mostly designed for stabilization of key slips . How can designer cater for stability of minor slips? Answer There are many methods to treat mi

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

Define Remedial measures for Problems in Turbid Water - Refraction? There is little that can be done to overcome the effects of refraction. Image definition and contrast in tur

Determine the limit states of serviceability, Limit States of Serviceabilit...

Limit States of Serviceability These are those limit states which point out to the inability of a structure or a structural component in functioning properly as per the intende

What is floating foundation, Explain the procedure of determining the safe ...

Explain the procedure of determining the safe bearing capacity based on the standard penetration test. Write short note on (i) Floating foundation and (ii) Factors affecti

Transition curves - geometric design of roads, Transition Curves: If ...

Transition Curves: If a vehicle travelling on a straight enters a horizontal curve abruptly, it will cause shock and sway. To avoid this, it is customary to provide a transit

Show disadvantages of excessive concrete covers, Q. Disadvantages of excess...

Q. Disadvantages of excessive concrete covers? In reinforced concrete structures cover is generally provided to protect steel reinforcement from corrosion and to provide fire r

Torque, A shaft 9 m long is subjected to a torque 30 t-m at a point 3 m dis...

A shaft 9 m long is subjected to a torque 30 t-m at a point 3 m distant from either end. The reactive torque at the nearer end will be?

Higway engineering, Ask question Design the pavement by group index method ...

Ask question Design the pavement by group index method for heavy traffic using following subgrade data Soil passing 75micron sieve =65%,liquid limit =40%plastic limit =20% #Min

What are the limits of any soil classification system, Draw neatly the IS p...

Draw neatly the IS plasticity chart and label the symbol of several soils. What are the limits of any soil classification system? Explain the following tests with their meani

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