Grouted or penetration macadam, Civil Engineering

Assignment Help:

Grouted or Penetration Macadam:

This is a specification where the binder is sprayed on a compacted layer of stone aggregates and is allowed to penetrate and bind the aggregates. A layer of intermediate aggregates, called key aggregates, is spread on the layer and rolled. A seal coat is provided to seal the surface.

For a 50 mm compacted thickness, the quantity of coarse aggregates is 0.60 cu m per 10 sq m area, the quantity of binder is 50 kg per 10 sq m, and the quantity of key aggregates is 0.15 cu m per 10 sq m. The seal coat is similar to the seal coat provided for a PC.

The advantage of penetration macadam is that it does not require a mixing plant. The advantage is that it uses a high quantity of binder. The specification is hardly used now-a-days.


Related Discussions:- Grouted or penetration macadam

True or false, an increase in consumer income will affect the supply of any...

an increase in consumer income will affect the supply of any given product

Phyisc, describe abot the michelson interfrance

describe abot the michelson interfrance

Storm water drainage - Road drainage and maintenance, Storm Water Drainage:...

Storm Water Drainage: In city streets, the disposal of rain water has to be done through a system of underground storm water drains. The water is collected at the roadside ke

What is critical steel ratio, Q. What is Critical steel ratio? Critica...

Q. What is Critical steel ratio? Critical steel ratio - only consider 250mm of concrete from outer face The purpose of critical steel ratio is to control cracking pattern

Amount of water that added to achieve the optimum moisture, Geotechnical pr...

Geotechnical project specifications require that the soil's optimum moisture content of 24% be maintained during the roadbed's construction.   The field moisture test finds that fi

Define categories of spalls -underwater inspection of bridge, Define catego...

Define categories of Spalls -underwater inspection of bridge? Spalls are classified as follows:  i. Small spalls - up to 25 mm deep or approximately 150 mm in diameter. i

Loss of prestress due to elastic shortening of concrete, Loss of Prestress ...

Loss of Prestress due to Elastic Shortening of Concrete Due to elastic shortening of  concrete, tendons are able to reduce their stretched length to the same extent upto which

Streams not wholly alluvial - alluvial streams, Streams Not Wholly Alluvial...

Streams Not Wholly Alluvial In streams which are not wholly alluvial, consisting of bed of pebbles, rock, etc. the liner waterway is kept equal to the actual surface width of

Principle of adding cooling pipes, Question What is key principle of a...

Question What is key principle of adding cooling pipes or yet using cold water for concrete in concreting operation? Answer These methods aim at reducing placing tem

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