Early strength agent refers to the admixture which can improve the early strength of concrete and has no significant effect on the late strength.…
The application of various concrete admixtures can not only improve the performance of concrete, but also promote the development of new concrete technologies, promote the application of industrial by-products in cementitious material systems, and al…
Concrete is a mixture of a graded aggregate, sand, water, and cement. It is necessary to study the influence of concrete components on the effect of the high-efficient superplasticizer in order to give full play to their due effect.…
Other five kinds of water-reducing agents: sulfamate high-efficient water reducer, fatty acids high-efficient water reducer, HSB aliphatic superplasticizer, powder polycarboxylate, casein will be introduced.…
Melamine water reducing agent is the product of the reaction that melamine is first sulfonated by sulfuric acid and then condensed with formaldehyde, so the chemical name is sulfonated melamine-formaldehyde resin, which belongs to the anionic surfact…
Naphthalene Sulfonate Water Reducing Agent is the product of naphthalene sulfonated by sulfuric acid and then condensed with formaldehyde, which belongs to an anionic surfactant.…
Using concrete additives is the most effective, economical, and simple technical way to reduce the cement dosage, improve the utilization rate of industrial waste residue, and realize the high durability and performance improvement of concrete.…
There are several kinds of water reducers: lignosulfonate, naphthalene sulfonate water reducing agent, polycarboxylate-based high-performance water reducing agent.…
Polycarboxylic acid superplasticizer has been widely used in many construction fields. Modern concrete has high requirements for additional functional additives, so polycarboxylic acid water-reducing agent in the concrete system, it should consider…
In the coming weeks, problems with chip production due to a global shortage of neon could start to manifest. Zeno pointed out that if inventories are depleted by April, and chipmakers have no sources in the re…
According to the United Nations website, in the past week, countries reported an 8% increase in new crown cases to the WHO, with more than 11 million positive tests. Tedros noted that although some countries hav…