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- Also, the proportion of copolymeric monomers has great effects on the strength of cement mortar. 共聚物中单体的组成比对砂浆的强度也有很大影响。
- This paper concentrates on the influence of mineral admixture(such as fly ash,blast furnace slag and silica fume) on fluidity and one day early strength of cement mortar. 本文在试验的基础上研究了矿物掺合料单掺和复掺时对水泥胶砂流动性及1d早期强度的影响。
- Abstract: The effects of added limestone contents in portland limestone cement and fineness of cement grinding on strength of the cement mortar were investigated. 文摘:研究了石灰石硅酸盐水泥中石灰石掺入量及水泥细度对水泥胶砂强度的影响。
- Properties of the coal-gangue with varying calcining degrees and the effects of calcination on the fuidity and strength of cement mortar with coal-gangue were investigated. 研究了不同煅烧程度煤矸石性能及其对水泥浆体流动性和强度的影响。
- Cement mortar was modified with soap- free emulsion VAC(vinylac et ic acid)/DMC(methacyloy loxyethyl trimethylammohium chloride)/VHE(vinyl- 4- hy drobutyl- ether)copolymerization. The effect of VAC/DMC/VHE on the strength of cement mortar was studied. 研究了无皂乳液醋酸乙烯酯(VAC)/甲基丙烯酰氧乙基三甲基氯化铵(DMC)/乙烯基羟丁基醚与水泥共混所形成的水泥基复合材料的性能。
- The influence of fly ash and slag powders on the fluidity and compressive strength of cement mortars were investigated. 用不同掺量的矿渣粉及粉煤灰对水泥砂浆流动性和抗压强度进行了试验研究。
- Using the staistics method to research the strength of cement mortar changing regular pattern by age 利用数理统计方法研究水泥胶砂强度随龄期变化的规律
- INFLUENCE OF GROUND MINERAL ADMIXTURES ON PORE STRUCTURE OF HARDENED CEMENT PASTE AND STRENGTH OF CEMENT MORTAR 磨细矿物掺合料对水泥硬化浆体孔结构及砂浆强度的影响
- strength of cement mortar 水泥砂浆强度
- Test results show that the carbon fiber with high elastic modulus can not only improve strength performance but also improve toughness of cement mortar, and that the polypropylene fiber with low elastic modulus can only toughen cement mortar. 试验结果表明,高弹性模量的碳纤维对水泥砂浆既能增强,又可显著增韧;低弹性模量的聚丙烯纤维对水泥砂浆只能增韧。
- The influence of silane coupling agent on the density, delamination degree, flexural strength and compressive strength of various kinds of composite cement mortar was studied. 通过红外光谱分析及砂浆强度测试,研究了硅烷偶联剂对不同种类复合水泥砂浆的稠度、分层度、抗折强度及抗压强度的影响。
- The effect of cement mortar reinforced with steel mesh upon the strength and deformation characters of walls are analyzed through comparing strengthened walls" experiments with unstrengthened walls" . 并通过砖墙加固前后的实验对比,分析了钢筋网水泥砂浆对墙体强度特性和变形特性的影响,阐述了该种加固措施对墙体抗弯强度和抗剪强度提高的不同效果。
- To determining the quantity of water and the standard consistence by measuring the fluidity of cement mortar. 通过测定水泥胶砂流动数值,确定水泥胶砂标准稠度用水量。
- The results of mortar test show that the retention rates of compressive strength of the cement mortar at 28 d increase to above 80.1% from 60.1% for the commonly used type Hongxing-I high alkali accelerator. 且水泥砂浆的28d强度保留率显著提高,由现用的高碱速凝剂红星I型的60.;1%25提高至80
- The influence of different contents of slag, fly ash and zeolite powers on the strength of alite-calcium barium sulphoaluminate cement mortar is investigated, and the reaction mechanism is discussed. 摘要研究不同掺量的矿渣、粉煤灰和沸石粉对阿利特-硫铝酸钡钙水泥砂浆强度的影响规律,并对其反应机理进行探讨。
- The experimental results show that, adding some PP fibers and polymer emulsion can improve the impact resistance and creep behavior of cement mortar significantly. 结果表明,掺加适量的聚丙烯纤维和聚合物乳液,可以有效提高水泥砂浆的抗冲击性能和抗徐变应变性能;
- With adding fly ash, the TDC of cement paste or mortar is decreased obviously.When the amount of fly ash exceeds 30%, the TDC of cement mortar has a little change. 粉煤灰能显著降低水泥浆体的线膨胀系数,当粉煤灰掺量达到30%25以上时,掺粉煤灰水泥砂浆的线膨胀系数差别不大;
- Study on relationship between particle size distributional fractal dimension of cement particles and compression strength of cement mortars 水泥颗粒粒度分布分形维与其胶砂抗压强度的关系研究
- Concrete is made of cement, sand, stone and water. 混凝土是由水泥,砂子石头和水混合做的。
- The long war of attrition exhausted the strength of both countries. 这场长期的消耗战耗尽了两国的力量。