How should a concrete mix water added on site?
How should a concrete mix water added on site?
(OP)
How long should a concrete truck mix water that is added on site?
I know it isn't a good practice at all, but it happens. Any ideas on the minimum amount of time it should mix after the water is added before it is poured? Does ACI comment on this matter?
I know it isn't a good practice at all, but it happens. Any ideas on the minimum amount of time it should mix after the water is added before it is poured? Does ACI comment on this matter?





RE: How should a concrete mix water added on site?
Dik
RE: How should a concrete mix water added on site?
The truck should have a working revolution counter and a readable site glass or water meter to check the volume of water introduced into the mix.
The total revolutions of the drum at discharge should be less than 300, including initial mixing, transit mixing and site mixing.
RE: How should a concrete mix water added on site?
Concrete truck (agitated drum mixer) recommendations for mixing speed, max volume of drum, agitating speed etc. are noted on a plate displayed on the exterior of the truck, usually in plain site unless you have something outdated/non-standard.
And yes I am confident ACI and ASTM test methods reg.s include an abundance of reg.s relating to these matters, if you have access and time to interpret the text.
RE: How should a concrete mix water added on site?
RE: How should a concrete mix water added on site?
Kieran