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Asphalt mastic has sand and asphalt in the ratio ________
In asphalt mastic flooring ___________ should be added to the asphalt mix in order to apply it cold.
Consider the following statements: 1. Asphalt is a naturally occurring product having a non-crystalline structure. 2. Rock Asphalt occurs in limestones or sandstones. 3. Tar is the residue left after the distillation of crude oil. 4. Resins in Asphalt provide the stickiness to the product. Which of the above statements are correct?
Mastic asphalt is
In _________ method, a layer of hot mastic Asphalt is laid on the roof surface.
Mastic asphalt type construction leads to a voidless mass.
A prime coat is low viscosity asphalt emulsion used to create bond between existing pavement and new asphalt overlay.
In the Union Budget 2011-12, a full exemption from the basic customs duty was extended to the bio-based asphalt (bioasphalt). What is the importance of this material? 1. Unlike traditional asphalt, Bioasphalt is not based on fossil fuels. 2. Bioasphalt can be made from non-renewable resources. 3. Bioasphalt can be made from organic waste materials. 4. It is eco-friendly to use Bioasphalt for surfacing of the roads. Which of the statements given above are correct?
In rural road construction, the use of which of the following is preferred for ensuring environmental sustainability or to reduce carbon footprint? 1. Copper slag 2. Cold mix asphalt technology 3. Geotextiles 4. Hot mix asphalt technology 5. Portland cement Select the correct answer using the code given below:
Which of the following statements is/are correct? 1. The earth is nearest to the Sun at Perihelion, which generally occurs on January 3. 2. The earth is farthest away from the Sun at Perihelion, which generally occurs on July 4. 3. The earth is farthest away from the Sun at Aphelion, which generally occurs on July 4. 4. The earth is nearest to the Sun at Aphelion, which generally occurs on January 3. Select the correct answer using the code given below: