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

Maintenance of bituminous roads, Maintenance of Bituminous Roads: The...

Maintenance of Bituminous Roads: The common defects noticed in a bituminous road are : potholes cracks rutting corrugations shoving stripping and l

How to calculate the coefficient of permeability, The discharge of water co...

The discharge of water collected from a constant head permeameter in a period of 15 minutes is 500 ml. The internal diameter of the permeameter is 5 cm and the measured difference

Calculate the final volume of the compacted soil, 1. 130,000-yd 3 of banke...

1. 130,000-yd 3 of banked soil from a borrow pit is stockpiled before being trucked to the jobsite. The soil has 18% swell and shrinkage of 8%.  The final volume of the compacted

Surface-protecting fenders and energy-absorbing fenders, Question What ...

Question What is main difference in application of surface-protecting fenders and energy-absorbing fenders ? Answer Surface-protecting fenders are fenders that make

What is core-barrel samplers, Q. Core-barrel samplers: single tube sampler ...

Q. Core-barrel samplers: single tube sampler vs. double tube sampler vs. triple tube sampler Core barrel samplers are initially designed to sample rock. In single tube sampler

Necessity of air valves in pressurized pipelines, Q. Necessity of air valve...

Q. Necessity of air valves in pressurized pipelines? Air valves are broadly categorized into two major types: single air valves and double air valves. Single air valve comprise

Assignment., classification and characterstics of lintels

classification and characterstics of lintels

Show the side clearance of pipes in trenches, Side clearance of pipes in tr...

Side clearance of pipes in trenches From the design point of view, it's predominant to minimize the width of pipe trenches due to thebelow reasons: (i)  Higher cost of exca

Industrial steel floor fire proof, i want to know the construction details ...

i want to know the construction details of industrial steel floor?

Brickwork, write buckling and dislodging of brick slip?

write buckling and dislodging of brick slip?

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