Presence of deleterious material, Civil Engineering

Assignment Help:

Presence of Deleterious Material

Deleterious materials are vegetable matter, soft particles, clay lumps, mica, coal, etc. which can adversely affect the performance of aggregates.

Specific Gravity and Water Absorption

Specific gravity of aggregates is an indirect measure of its strength. The higher the specific gravity, the denser is the rock and stronger is the aggregate.

Water absorption depends upon the voids in the rock. The more the water absorption, the greater is the voids content, and hence less strong is the aggregate. For concrete and bituminous pavements, a maximum value of 2 per cent of water absorption is specified.


Related Discussions:- Presence of deleterious material

Determine the water-cement ratio, A concrete batch plant provided the Desig...

A concrete batch plant provided the Design Strength for the engineer's mix design to match the project's specification requirement for a 4000 psi Tremie pump mix.  The Water-cement

Deflections of bars, how do one uses the Macauleys model to find deflection...

how do one uses the Macauleys model to find deflections of bars

Compare the values of active and passive earth pressures, A retaining wall ...

A retaining wall 12 metres high is proposed to hold sand. The values of void ratio and φ in the loose state are 0.63 and 30° whereas they are 0.42 and 40° in the dense state. Suppo

What is n-value of standard penetration test, Define and discuss the variou...

Define and discuss the various factors that help decide the number and depth of bore holes needed for subsoil exploration. What is 'N-value' of Standard Penetration Test? How do

Classification of timber based on availability:, Classification Based on Av...

Classification Based on Availability: Forest departments categorized timbers based on the availability as X=Most common. 1415 m 3 or more per year Y=Common. 355 m 3 to 1415

Define the approach velocity, Define the Approach Velocity Typical prob...

Define the Approach Velocity Typical problems have negligible approach velocity.  v 1 = Q/A, where A = the cross-sectional area of flow in the channel. The value is not the ve

Sub-base layer be served as a drainage layer , Question Would a sub-bas...

Question Would a sub-base layer be served as a drainage layer to take away water from pavement? Answer As well providing load distribution in post-construction stage a

Highway Engg, what are lab and field test carried on soil subgrade

what are lab and field test carried on soil subgrade?

Determine the co-ordinates of grain-size distribution curve, In a hydromete...

In a hydrometer analysis, 0.5 N of soil was mixed in water to form one litre of uniform suspen- sion. The corrected hydrometer reading after a lapse of 60 min. from the start of se

What are dissimilar applications of draglines, Question: What are dissi...

Question: What are dissimilar applications of draglines, backhoes and shovels? Answer: An excavator is distinct as a power-operated digging machine and it includes di

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