2) The pavement contract locations the was less th would you perform them. testi

Question

2) The pavement contract locations the was less th would you perform them. testing agency that you work for has been asked to conduct a forensic investigation of a that had been installed. The agency requesting the test does not believe that the or properly installed the pavement. In particular, they believe that in some unknown compressive strength of the concrete was lower than specified and the thickness en specified. What tests could you conduct during your investigation and how mix design that is “greener" than what is currently used. They would prefer if the concrete was less expensive, if possible, as well. They are also concerned about the properties of the mix and want to ensure that they are not negatively affected. What suggestions would you make when developing the new mix design and why? 3) The testing agency that you work for has received a request from a contractor to develop a

Explanation / Answer

2) When it is needed to test the strength and thickness of the pavement, the non destructive methods are available which will determine the modulus values of the pavement like geo gauge will give the stiffness as well as modulus and Falling weight deflectometer will give the modulus value which is used to find out the thickness of the pavement by back calculation and destructive methods like core cutter method and to find the thickness physically and also the compressive strength using the universal testing machine. These test can be generally performed at every 250 m intervals in jig jag manner or else for every km in case of longer roads.

3) The mix design is made with less amount of cement and with high percentage replacement with cementitious products like fly ash which will provide equal strength which will have a low carbon footprint and for curing purpose most efficient curing techniques are used which require less water and require less curing period.

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