A mixture refers to a mixture of one or more polymers and other components such as fillers, plasticizers, catalysts and colorants. Adding steel slag powder into concrete can improve the strength of concrete and reduce the slump loss of concrete.
Test method for compressive strength of steel slag lime mixture:
1. After the specimen is molded, it is placed in the indoor air for 24 hours, and then in the curing room for 28 days. The curing temperature is 20 2℃ and the humidity is 90%.
2. Take out the healthy specimen one day in advance, put it in a pool covered with a thin layer of sand, first add water to the height of the specimen, soak it for 1/3, and then add water until it exceeds the top surface of the specimen to saturation.
3. Load uniformly and continuously at the loading speed of 0.4MPa/s test block. When the specimen begins to deform sharply and is close to failure, stop adjusting the accelerator of the testing machine until the concrete specimen is destroyed, and record the failure load.
Adding steel slag powder into concrete can obviously improve the strength of concrete, but it is not a simple linear relationship with the compressive strength of concrete. Adding steel slag powder to concrete is beneficial to improve its compressive strength, but there is an optimal dosage, which should be configured according to the actual situation.
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