As a new generation of water reducing agent, polycarboxylic acid water reducing agent is widely used in concrete engineering, but there are still some problems in the process of use that are difficult and difficult to solve. Therefore, some matters should be brought to our attention during use.

In the early 19th century, dispersive admixtures were used. However, in the 1960s, sulphonated melamine formaldehydes and analogous naphthalene derivatives were introduced. Nowadays, new admixtures based on polycarboxylate ethers are being developed. Polycarboxylate ethers possess structural characteristics that provide more fluid concrete, which is more resistant to segregation and exudation as compared to that prepared with the previously known superplasticizers. Polycarboxylate ethers have been commonly utilized to enhance the flow ability of cementitious materials. Moreover, polycarboxylate ether is one of the most effective types of plasticizers, water reducer, and disperser which promotes excellent flow ability, high strength, workability, and pump ability, and efficient dispersion for gypsum, cement, and ceramic materials.

Structure and use of methyl allyl alcohol polyoxyethylene ether (HPEG) Alkylpropanol is an important organic intermediate used in the synthesis of perfumes, resins and the like. The synthesis of methyl allyl alcohol polyoxyethylene ether (HPEG) from methyl allyl alcohol and ethylene oxide is used for a new generation of high performance concrete water reducer.

A new type of cement grinding aid was synthesized from triisopropanolamine, diethanolamine, acrylic acid, HPEG400 and other raw materials. The effect of grinding aid, physical and mechanical properties and hydration products on titanium slag cement was tested.

Concrete segregation refers to that the amount of the pumping agent exceeds the saturation point of the cementing material, and the resistance between the particles of the cementing material decreases and the displacement accelerates.

Today 24th Jan 2018(Eighth day of the twelfth lunar month) is chinese day which eating porridge mixed with different rice grain etc.

Polyether monomer in the Chinese market mainly refers to methoxy polyethylene glycol (MPEG), allyloxy polyethylene glycol (APEG), tresylated polyethylene glycol (TPEG) and isobutylene alcohol polyoxyethylene ether (HPEG). The field in which polyether monomer finds most application comes to polycarbo