Math, asked by tanishamanatwal, 1 month ago

Waste plastic bottles are non biodegradable and its disposal has always been a problem. Therefore, replacing the bricks with an alternative material, i.e.bricks made from waste plastic bottles is the solution. Waste Polyethylene Terephthalate (PET) bottles packed with dry solid wastes, sand or soil has been successfully used in a number of countries. Plastic bottles of size 600 ml or 500 ml are filled with finely crushed construction demolition waste in three layers and tamped each layer with tamping rod by 25 blows and used. These bottles were called as Eco-Bricks. Composite Eco Brick is made with the size of (23 cm x 10 cm x 7 cm) cm in which a single Eco-Brick is placed. 70% of the composite eco brick is made with eco brick and 30% with cement mortar. 1. Compare the cost of normal sand brick and Composite Eco-bricks available in the market. 2. Find the difference in the cost of construction of the boundary wall of rectangular park (i) Using normal sand bricks (ii) using composite eco bricks. The length and breadth of the park are 80 m and 50 m respectively. The wall is 1.5 m high and 0.25 m wide. A space of 3 m, along length and breadth each, is left to enter the park. 3. What is the percentage decrease in the cost of construction of boundary wall, if an composite eco-brick is used in place of a normal brick? Draw an engineering drawing of the park and colour it. (choose a proper scale to draw the drawing).​

Answers

Answered by kritikamaan31
1

Answer:

You are genius. From where did you get this question.

I can't help you because information about sand bricks is not given. Sorry for inconvenience.

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