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Q: How long have humans used concrete?
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Related questions

How long have humans used antibiotics?

a very long time.


Can humans digest concrete?

No don't be silly!


How long have humans used cats?

"used cats" cats arent drug!!


How long does a concrete structure last?

How long will a driveway of concrete last in Louisiana?


Is concrete pavement can be used in highways?

Yes, Portland cement concrete pavement is often more economical in the long term than is asphalt concrete pavement. The asphalt concrete can be quite a bit faster to lay down and open to traffic, though.


Can a concrete hardener be used after dying concrete without affecting the color?

can a concrete hardner be used after dying concrete without affecting the color


Which pipe used in concrete pipe?

A concrete mixture of sand, cement, and small gravel is used to make the concrete from which the tubular concrete pipe is made. The pipe is made of concrete.


When is concrete used without metal reinforcement bars?

Concrete are used without reinforcement bars on concrete roads.


How long have the humans used wood?

7& half yerars darllings


What is a concrete slump test?

The concrete slump test is used to measure an aspect of concrete. This test is used to measure the workable of concrete as well as its freshness and health.


Which are the commonly used grades of concrete?

The commonly used grades of concrete are as follows,M10M15M20M25M30M35M40


When was concrete used by the Egyptians?

The pyramid in Gaza which is dated 2500 bc used concrete.