Chemistry, like all the natural sciences, begins with the direct observation of nature¡ª in this case, of matter.6276-54-6, Name is 3-Chloropropan-1-amine hydrochloride, SMILES is NCCCCl.[H]Cl, belongs to chlorides-buliding-blocks compound. In a document, author is Wang, Jiangang, introduce the new discover, COA of Formula: C3H9Cl2N.
Pore characteristics of recycled aggregate concrete and its relationship with durability under complex environmental factors
The influences and mechanisms of single and coupled effect of carbonation, dry-wet cycles and freeze-thaw cycles on the durability of three types of recycled aggregate concrete were studied. The compressive strength, chloride ion migration coefficient and micro pore parameters of recycled aggregate concrete were tested. The results showed that carbonation and dry-wet cycles can improve the pore tortuosity and reduce the connectivity of pores, while freeze-thaw cycles, coupling of carbonation and freeze-thaw cycles, and coupling of carbonation, dry-wet cycles and freeze-thaw cycles can significantly reduce the pore tortuosity and deteriorate the pore structure. The key reason for durability failure of recycled aggregate concrete in a complex environment is the increase of large pore volume fraction. When more factors are coupled, the increase in the pore volume fraction is greater. Based on the pore tortuosity and large pore volume fraction, an integrated pore index was proposed, and a prediction model of compressive strength and chloride ion migration coefficient of recycled aggregate concrete under complex environmental factors was established, which provided the basis to evaluate and maintain the durability of recycled aggregate concrete. (C) 2020 Elsevier Ltd. All rights reserved.
The proportionality constant is the rate constant for the particular unimolecular reaction. the reaction rate is directly proportional to the concentration of the reactant. I hope my blog about 6276-54-6 is helpful to your research. COA of Formula: C3H9Cl2N.