Building Chemicals

Aminosulfonic acid superplasticizer (ASP) is a new type of superplasticizer developed after naphthalene, melamine and aliphatic superplasticizers. It overcomes the disadvantages of naphthalene and melamine superplasticizers, such as poor fluidity and large slump loss under low water cement ratio. It shows excellent characteristics in the following aspects: 1 ASP has strong water reducing and dispersing effect on cement paste: the experiment shows that under the same conditions, the content of ASP + 0.5% 25 is equivalent to the content of naphthalene system 0.75% 25, which can ensure that the concrete can still maintain good workability at low water cement ratio. Therefore, the aminosulfonic acid high-efficiency water reducer has higher water reducing rate than naphthalene system and melamine system, and the fluidity of cement paste is large Strong dispersion. 2. The slump loss of concrete can be almost reduced when ASP is mixed with high-efficiency naphthalene within 60 minutes, which shows that ASP can control the slump loss of concrete. 3. ASP has strong retarding effect on cement and concrete. 4. The effect of ASP on concrete reinforcement is obvious: the compressive strength is one of the most important mechanical properties of concrete. The experiment shows that ASP is better than other superplasticizers, has stronger water reducing effect on concrete and more obvious improvement of strength. In conclusion, aminosulfonic acid series superplasticizer has high water reducing rate, low dosage, small slump loss and more obvious improvement of strength. It is a superplasticizer with excellent performance.

Plant polyol is a raw material that can replace petroleum polyether polyol to produce polyurethane. Taking miscellaneous wood, moso bamboo powder, moso bamboo fiber and vegetable oil, such as soybean oil and castor oil, as the base materials, they are put into the reactor for a series of reactions to produce plant polyols.

Micro silicon powder is a kind of ultra-fine silicon powder material formed by the rapid oxidation and condensation of SiO2 and Si gas produced by metallurgical electric furnace at high temperature above 2000 ℃ and oxygen in the air.

Aliphatic superplasticizer, namely aliphatic superplasticizer, is a green superplasticizer, which will not pollute the environment and endanger human health. Such fatty water reducer is carbonyl pyroaldehyde synthesized by sulfonation of acetone.

As cement grinding additive, it can improve grinding speed, fineness and cement strength