What are the problems when polycarboxylate superplasticizer is used in concrete engineering?

The influence of water consumption is very obvious. In the actual application of concrete engineering, sometimes if the water consumption is increased by more 1~3kg/m3, the concrete will appear serious bleeding phenomenon, which will cause defects su…

What is silicon nitride?

Silicon nitride ceramic is a kind of synthetic material with strong covalent bond force between silicon and nitrogen atoms in its structure, so it has the characteristics of high strength, high hardness, corrosion resistance, oxidation resistance, we…

Concrete pce powder: Types, Advantages and disadvantages, and Properties

The commonly used superplasticizers include polycarboxylate series, naphthalene series, fatty acid series, and other superplasticizers.…

China foreign trade of goods to achieve rapid growth, which also has a positive impact on break bulk

China's trade in goods totaled 23.6 trillion yuan in the first seven months of this year, up 10.4 percent year on year, according to the General Administration of Customs. Foreign trade has overcome many adverse effects and achieved rapid growth. Dol…

China foreign trade of goods to achieve rapid growth, which also has a positive impact on amaozn seller

China's trade in goods totaled 23.6 trillion yuan in the first seven months of this year, up 10.4 percent year on year, according to the General Administration of Customs. Foreign trade has overcome many adverse effects and achieved rapid growth. Dol…

Coal prices have soared as global energy supplies have tightened, which has also had an impact on nucleic acid extraction machine prices

Overview of market area prospect of nucleic acid extraction machine By region, the market is segmented into North America, Europe, Asia Pacif…

Application of Chromium Diboride CrB2 Powder

The chemical formula of chromium diboride is CrB2, which is a crystal with high hardness and melting point, and is chemically stable. Concentrated nitric acid is insoluble and can be directly mixed with elements or made from active metal reduction ox…

Some factors that would influence the effect of pce powder in concrete

Some factors that would influence the effect of pce powder in concrete…

Ukraine's cut of the Russian oil pipeline has had an impact on the market for nucleic acid extraction

On the evening of August 9, the Russian state oil pipeline company announced that oil shipments through Ukraine had been suspended. Ukraine's pipeline operator Ukrtransnafta has suspended tra…

International crude oil prices fall more than 20 percent, the price of reverse transcriptase-pcr vs qpcr will also have a certain impact

In the past two months, on the background of weaker demand expectations, international crude oil prices have fallen by more than 20%. Analysts said that the poor macro data of major overseas economies, under the expectation of economic recession, cru…

International crude oil prices fall more than 20 percent, the price of qpcr genotyping will also have a certain impact

In the past two months, on the background of weaker demand expectations, international crude oil prices have fallen by more than 20%. Analysts said that the poor macro data of major overseas economies, under the expectation of economic recession, cru…

Effect of polycarboxylate superplasticizer

Polycarboxylate superplasticizer plays four main roles in concrete mixture. Firstly, in order to improve the pouring performance of concrete, the workability of concrete is improved without changing the composition of concrete.…