Concrete: The Basic Mix

A general teacher's guide for concrete preparation. ... 2 cement : 3 sand. Most of the student activities can be conducted using this basic mixture.

Preparing for the slab - Schlatter

Preparing for the slab. ... The sand provides a sump to ... the action of rain and sun on the clay baked it as hard as concrete. Now we are ready to prepare the fill ...

How to Pour Concrete | Family Handyman

Home › Masonry › Pouring Concrete › How to Pour Concrete. How to Pour Concrete. ... Pack about 4 in. of sand or gravel over clay and other poorly draining soils ...

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