摘要:
The invention provides methods and compositions for increasing stiffness or rate of stiffening of concrete mixes by carbonation of the mix, preferably while viscosity remains at a level suitable for the intended use of the concrete mix.
摘要:
Compositions and methods are provided for a system in which liquid carbon dioxide, or a mixture of liquid and gaseous carbon dioxide, is converted to solid carbon dioxide by exiting an orifice at a sufficient pressure drop, e.g., for delivery of carbon dioxide to a concrete mixture in a mixer.
摘要:
The invention provides compositions and methods directed to carbonation of a cement mix during mixing. The carbonation may be controlled by one or more feedback mechanisms to adjust carbon dioxide delivery based on one or more characteristics of the mix or other aspects of the mixing operation.