It can be regarded as a multi-phase material, including graphite phase transformed from carbonaceous particles such as petroleum coke or pitch coke, graphite phase transformed from coal tar binder surrounding the particles, particle accumulation or c…
The purity of carbonaceous raw materials such as petroleum coke and pitch coke is relatively high, and the ash content is usually less than 0.5%, while the purity of natural graphite treated by flotation is relatively low, and the carbon content is u…
The cement superplasticizer concrete The cement superplasticizer is an admixture that can greatly reduce the amount of mixing water under the condition of the same slump of concrete. The plasticizer is a kind of concrete admixture that can reduce wat…
Koalas were declared endangered in eastern Australia on Friday, with more and more koalas dying from disease, habitat loss, and other threats. Earlier, the koala was considered a vulnerable species, and the Commonwealth Department of the Environment…
Concrete additive is a substance added in the process of mixing concrete to improve the performance of concrete, the amount of which is not more than 5% of the quality of cement (except in special cases).…