The effect of CNM additives
of the characteristics of different concretes
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The introduction of carbon nanomaterial in the amount of thousandths of a percent by weight of cement leads to a change in the properties of concrete:
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CEMENT-SAND MIXTURE
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| Dependence of compressive (A) and bending (B) strength cement-sand samples from type of CNM. Data obtained on the first day after the heat treatment for 1.5 h at T = 50° C. The content of carbon nanomaterial - 0.006% by weight of cement.
The increase in compressive strength at 143% and the bending strength at 285% |
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| Dependence of compressive (C) and bending (D) strength cement-sand samples from type of CNM. Data were obtained at 28 days. The content of carbon nanomaterial - 0.006% by weight of cement. The increase in compressive strength at 42% and the bending strength at 26% The increase flowability of the concrete mix when adding CNM enable to reduce the mixing water content of 15-25% |
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HIGH-STRENGTH CONCRETE |
FOAM CONCRETE |
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| Time dependence of the compressive strength for different types of CNM.
The content of carbon nanomaterial - 0.005% by weight of cement The increase in compressive strength at 18% |
Kinetics of changes in the strength of foam concrete. The content of carbon nanomaterial - 0.05% by weight of cement The increase in compressive strength at 88% |