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Q: Why is it easier to walk on concrete road instead of sand?
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Why is sand placed on an icy road?

Sand is placed on an icy road to add more friction. This reduces how slippery it is and makes it easier to drive on.


What other solid is needed to make concrete instead of mortar?

rocks Limestone can be mixed with sand :)


Does a snail travel faster on sand or concrete?

Concrete because the sand would burn it.


What is the volume of sand in 1 cubic meter of concrete?

Concrete is a mixture of cement, sand, stone, and water. In a cuibic meter of concrete, , there is about 0.3 cubic meters of sand, or about 475 kg


How does the sun's energy change as it heats the earth and the atmosphere causing the Greenhouse effect?

By feeling the concrete on the road or sidewalk and feel how hot it is on the beach sand.


Does a ball roll farther on grass concrete or sand?

Probably concrete, but hard packed sand would do pretty well.


How is mortar concrete made?

Concrete :- a mix of cement, sand, water, and gravel. Mortar :- a mix of cement, sand, and water


How is concrete and mortar made?

Concrete :- a mix of cement, sand, water, and gravel. Mortar :- a mix of cement, sand, and water


What weighs more wet sand or dry concrete?

dry concrete


When was Off the Sand Road created?

Off the Sand Road was created in 2002.


What is correlation between strength of mortar to strength of concrete?

mortar are mixing by sand & cement and concrete is mixing by cement, sand & stone


What makes glass and concrete?

Both glass and concrete contain sand. Sand is melted to make glass. It is mixed with aggregate (gravel) portland cement and water to make concrete.