And conversely if you add Tri-Chromium ( literally only drops) the concrete
is 70% stronger. The chemical stops oxidation along the rebar's. This is an
old Ferro cement boat builders trick. You can also re-enforce by adding 5 %
Even today, cement mixing is an art, NOT a science. I would certainly not
add anything but a small quantity of latex to cement.
This is a trick used by concrete finishers for a long time; at least
30 years that I know of. Lots of others' experience tends to validate
this, but I haven't used it.
Detergent isn't an approved admixture; however, the approved ones cost
a lot more.
The theory is the detergent allows the fine aggregates to slip around
more, making it easier to finish and to consolidate around
reinforcement and forms.
If the mix is designed for the application, you shouldn't need to add
detergent. If the mix sits in the truck too long, drivers tend to add
water to "hide" the loss of plasticity. Detergent may do the same
thing. If you accept this, you're not getting what you paid for.
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