8
Stand Assembly
Mixing Hints
GB
A few hints on mixing. First add water, about 1
1
/2 gallons approximately, depending on the type of
mix. Cement should go in after some of the aggregates work consistently to the ratio of ingredients as
listed below for whatever type of concrete mix you are working to. Beware of low grade aggregates,
this only leads to trouble later on with sinking and frost spoiling the appearance of the pour. Also
importantly do not get the concrete mix too wet as this can reduce the strength and is less able to
withstand weathering. Never throw material into the mixer, trickle it steadily over the rim or it will stick
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mixing time for concrete is 2
1
/2 minutes, this is taken when all the material, including the water has
entered the drum. Over mixing can reduce strength and cause segregation of the coarser aggregates.
Keep your mixer clean, the slightest trace of material left in the drum, will harden and attract more
each time you use it until the machine is useless. Do not throw bricks into a mixer drum to clean it
out. The best method is 1” gravel and clean water, use plenty of it, as this will do the job in half the
time.
GB
3
4
5
6
1
2
