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

Stress strain curves, stress strain curves for any materials with an explan...

stress strain curves for any materials with an explanation

State the natural frequency of a machine foundation, State the natural freq...

State the natural frequency of a machine foundation of base area 2m × 2m and weight 150 kN, suppose that the soil mass participating in the vibration is 20% of the weight of founda

Ductility test, Ductility Test: The ductility of a bituminous binder ...

Ductility Test: The ductility of a bituminous binder is its ability to deform under load and return to its original condition after removal of the load. The property is deter

Estimate the activity durations - construction management, Estimate the Act...

Estimate the Activity Durations The total labor cost for emergency bridge rehabilitation on an interstate highway is $5,716,440.  The average crew-hour cost is $15,879 for this

Determine the value of the coefficient of permeability, Determine the value...

Determine the value of the coefficient of permeability A glass cylinder 5 cm internal diameter with a screen at the bottom is used as a falling head permeameter. The thickness

Embankment, Describe the various steps in embankment construction.

Describe the various steps in embankment construction.

Area bouded by curves, find the area bounded by the curve y=3x(x-2)^2 and t...

find the area bounded by the curve y=3x(x-2)^2 and the x-axis

Cantilever beam, can i use lockfix to making cantilever beam

can i use lockfix to making cantilever beam

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