Design and Evaluation of Open Graded Hot Mix Asphalt Using Cement as A Grouting Material
Journal Title: International Journal of Modern Research In Engineering & Management. - Year 2018, Vol 1, Issue 10
Abstract
Road networks ought to be efficiently designed to be safe, speedy and loading sustaining as it has a significant importance in country’s development. For that, pavement should be designed efficiently to exhibit better strength, durability and economical at the same time. Generally, a pavement is classified as Flexible or Rigid. Flexible pavement is opened early to traffic, has good riding quality and ease of maintenance but owing to heavy loading conditions these pavements are more susceptible to wear and tear. On the contrary rigid pavement is load sustaining, durable but having higher construction cost and poor riding quality. World is heading to semirigid pavement which exhibits characteristics of both these pavements. It is the combination of cement concrete and porous asphalt concrete which is achieved by leaving 25% to 30% air voids infused by cement grouts and is known as Semi-rigid pavement.In this research, semi-rigid pavement was designed using ratio of grout of optimum mix was 1:0.55 at water cement ratio by 2% of cement dosage with SP. Study concludes that, Semirigid pavement’s Marshall stability of 7 days was almost 85% of rigid pavement and 28 days compressive strength of semi-rigid pavement was almost 30.5% that of rigid pavement. Besides, it has been ensured that 7 days strength is comparable to 28 days strength of Semi-rigid pavement.
Authors and Affiliations
Gulzar Hussain Jatoi
Keywords
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