This paper studied the effect of three kinds of water-reducing agent(lignosulfonate MG,naphthalene sulfonate FDN, polycarboxylate KH-JS)on setting time,fluidity and strength of building gypsum at 28 d,by using scanning electric microscope(SEM),the change of hydrated crystal morphology was also studied.
研究木质素类MG、萘系FDN和聚羧酸类KH-JS减水剂对建筑石膏的凝结时间、流动性、28d强度的影响规律,并通过扫描电镜(SEM)研究了水化后石膏晶体形貌的变化。
Experimental research on polycarboxylate water-reducer;
聚羧酸类混凝土高性能减水剂的试验研究
Effect of genera carboxylic acid on biological activity related to P transformation;
类羧酸对棕壤中与磷素转化有关的生物活性的影响
Effect of genera carboxylic acid on urease, ammonification, nitrification of brown soil was studied through an indoor incubated test.
类羧酸是一种带有羧基的化工副产品,其主要成分是二羧酸和三羧酸。
The electronic configuration of indolecarboxylic acids was calculated by using CNDO/2 program.
应用ＣＮＤＯ／２量子化学计算程序对吲哚羧酸类中一系列化合物进行了量子化学计算，由计算结果找到了吲哚羧酸的活性部位，并讨论了电子结构、分子结构与活性之间的关
Study on the Micro-region Structure and Properties of Dithienothiophenes-dicarboxylic Acid
并三噻吩类羧酸的微区结构及其性能研究
The Synthesis and Characterization of Flavone-6-carboxylic Acid Derivatives;
黄酮-6-羧酸类化合物的合成与表征
Structural Manipulation and Properties of Carboxylate-based Coordination Polymers
羧酸类配位聚合物的结构调控与性质
Study on the Synthesis of Maleic Anhydride Series Polycarboxylate Superplasticizer
马来酸酐类聚羧酸盐减水剂的合成研究
phenyl polycarboxylic ester plasticizer
苯多羧酸酯类增塑剂
Syntheses, Structures and Properties of Coordination Polymers with Dicarboxylates;
二羧酸类配位聚合物的构筑与性质研究
Synthesis, Characterization and Crystal Structure of the Complexes with Some Carboxylic Acids;
若干羧酸类配合物的合成、表征及晶体结构研究
Synthesis of Ethyl 5-Hydroxy-1H-Indole-3-Carboxylates;
5-羟基-1H-吲哚-3-羧酸乙酯类化合物的合成
Synthesis and Performances of New Ether Type Polycarboxylic Acid Superplasticizers;
新型醚类聚羧酸超塑化剂的合成及性能研究
Synthesis, Structures and Properties of Coordination Complexes with Pyridine Carboxylic Acid;
吡啶羧酸类配合物的合成、结构及性质研究
Syntheses and Properties of Samarium Comlexes with Dicarboxylic Acid
二羧酸类稀土钐配合物的合成及性能研究
Study on Application of Poly-carboxylic Acid Water-reducing Agent to Hydraulic Structure Concrete
聚羧酸类减水剂在水工混凝土中的应用研究
Study on Allyl Polyethylene Glycol Based Polycarboxylate Superplasticizer
烯丙基聚乙二醇系聚羧酸类减水剂的研究
The Molecule Design,Synthesis and Application of Polycarboxylic Acid Superplasticizer
一类聚羧酸高性能减水剂的设计合成与应用
Synthesis of Polycarboxylic Superplasticizer Containing Fluorine under Conditions of Supercritical CO_2 and Its Performance
超临界CO_2下含氟聚羧酸类减水剂的合成及性能
Synthesis,Characterization and Optical Properties of a Novel Carbazole Carboxylate Derivative
新型咔唑羧酸类衍生物的合成、表征及光学性质
Research Advance of Flavonoids Carboxylic Acid Compounds and Their Rare Earth Complexes
黄酮羧酸类化合物及其稀土配合物的研究进展
Studies on Design, Synthesis and Bioactivity of Purine Carboxylic Acid, Piperazine Carboxylic Acid, Ribavirin and Thiosemicarbazones;
嘌呤羧酸、哌嗪羧酸、三氮唑核苷和缩氨基硫脲类化合物的设计合成及生物活性研究