Portland Cement Gravel
Calculator

Calculate sand gravel,
Required, based on the
number of bags of
cement on hand.

### Entry Form

Bags: Cement

Yards: Sand/Gravel

Cubic Feet: Sand/Gravel

### Using This Cement Sand/Gravel Calculator.

This calculator allows you
to determine sand/gravel
required, based on bags
of Portland cement on
hand.

This calculator is based
on 6 - 94 Lb. sacks
of Portland Cement per
cubic yard (3000psi).

27 cubic feet equals
1 cubic yard.

Enter Number of bags
of cement on hand
or part of bag as decimal.

This calculator is intended
for approximate guidance.

### Working With Concrete Tips

Only use clean water,
sand and gravel.

Aim for a mix of:
1 part cement, 2-1/4
part sand and 3 parts
aggregate.

Mix the dry cement and
and more water as
needed.

Cement mix should look
gray, not brown, and
water should not be freely
running on top.

more water, cement or
sand as needed.

Concrete must be used
within 1-2 hours of mixing,
depending on temperature.

The sooner you work on
it after pouring, the easier
the job.

Avoid over-working any
poured concrete, as this
will weaken the concrete.

Sand shrinks in volume
so order a little more
than the dry volume.

Best time to work concrete
is early morning or late
afternoon, but be aware
there is a waiting time for
surface water to evaporate.

If you wait too long in the
afternoon to do the job,
it could end up late in the
evening, when you will be
toweling the concrete.

It takes a few weeks to
for concrete to reach 90
percent of its final strength.

Concrete that cures too
fast will crack, scale,
and flake,and lack strength
and durability.

If the weather is windy or
very hot, cover the
concrete to prevent the
quick evaporation, which
can cause cracks in the
concrete.

### Index

Community Since 1998

Calculate Sand/Gravel
by the Number of Bags of
Cement on Hand,
at findnchoose.

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Thanks for considering.
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