ordinary Portland cement

Study on Modification of Mixed Cementing Material with Gypsum by Means of Ordinary Portland Cement

普通硅酸盐水泥对石膏基混合胶结材的改性研究

As a simple , economic and useful method , to add ordinary portland cement will improve the properties .

采用掺入普通硅酸盐水泥来改善其不足是一种简单、经济实用的方式。

Study on Improving Quality of 525 Ordinary Portland Cement

提高525号普通水泥质量的研究

Study on type 425R ordinary portland cement used for highway construction

R型425号普通硅酸盐道路水泥的研究

Application of ordinary portland cement in the shaft kiln lining

普通硅酸盐水泥用于立窑内衬砌筑的探讨

Improvement Mechanism of Ordinary Portland Cement on Micro-structure of Emulsified Asphalt

水泥对乳化沥青混合料微观结构的改善机理

The Adsorption Characteristics of Phosphate to Hydrated Ordinary Portland Cement

水化普通硅酸盐水泥对水中磷酸盐的吸附特性研究

Ordinary portland cement mortar was modified by addition of aqueous emulsion epoxy .

在普通硅酸盐水泥砂浆中，掺入水乳环氧对其进行改性。

The experimental results show that the physical mechanical performance of the cement is similar to that of ordinary portland cement .

结果表明，该品种水泥的物理力学性能与普通硅酸盐水泥相似。

A cohesionless-frictional soil , ordinary Portland cement and Class F flyash was used .

试验采用粘土、普通波特兰水泥和F级粉煤灰。

Research to solve the low early strength problem and demolding time is langer of glass fiber reinforced ordinary Portland cement ;

研究解决玻璃纤维增强普通硅酸盐水泥早期强度偏低及脱模时间过长的问题；

Portland cement and ordinary portland cement

GB175-1992硅酸盐水泥、普通硅酸盐水泥

Technical measures for producing 525R ordinary Portland cement using copper and zinc tailing and tin slag as raw materials

用铜锌尾矿和锡渣配料生产525R普通硅酸盐水泥

The results of the study had a role of guiding the production of product the super-ligh foamed concrete with ordinary portland cement .

上述研究结果对于采用普通硅酸盐水泥生产超轻泡沫混凝土具有一定的指导作用。

Reliable production of 525R ordinary Portland cement was therefore ensured by increasing the specific surface area of cement and adopting the above-mentioned technical measures .

再通过提高水泥比表面积等技术措施，稳定生产525R普通硅酸盐水泥。

The development of strength and soundness of the blended cement containing 30 % SM fly ash are similar'to the ordinary portland cement .

神木灰取代水泥在30%以内，对水泥的强度发展和安定性无不利影响；

Test results on resistance to chemical attack indicate that NASC possesses more excellent anti-chemical attacking property than that of Ordinary Portland Cement .

耐化学腐蚀试验表明新型碱矿渣水泥具有比普通硅酸盐水泥更优的抗化学侵蚀性；

The effect of additives A , B and C on grinding ordinary Portland cement , slag cement and fly ash cement was studied in this paper .

试验研究了A、B、C三类小极性分子对普通硅酸盐水泥、矿渣水泥，粉煤灰水泥的助磨作用。

The modified grouting cement is made of taking ordinary Portland cement or ripe Portland cement as the dominant material and adding some new grouting material .

改性灌浆水泥是以普通硅酸盐水泥或硅酸盐水泥熟料为主，掺入适量的新型灌浆材料。

The corrosion resistance and freeze / thaw resistance of alkali-activated cement are much better , and the drying shrinkage rate is much greater than ordinary portland cement .

碱–磷渣–粉煤灰胶凝材料的耐蚀性和抗冻性能均显著优于硅酸盐水泥，其干缩比硅酸盐水泥的大。

This paper investigates the stability of medium-alkali glass fibers in different cement matrices such as ordinary Portland cement , high alumina cement and magnesium oxychloride cement .

本文对中碱玻璃纤维在普通硅酸盐水泥、高铝水泥、氯氧镁水泥等不同水泥基体中的稳定性进行了研究。

The test results show that alkali-activated slag and fly-ash cementing materials have good acid resistance , while ordinary Portland cement and alkali-activated metakaolin have low acid resistance .

碱激发胶凝材料耐酸实验结果表明，碱-矿渣和碱-粉煤灰胶凝材料具有良好的抗侵蚀性能，水泥和偏-偏高岭土胶凝材料的抗酸侵蚀性能较差。

Among which the experiment group using 50 % fly ash 、 10 % silica fume instead of ordinary Portland cement shows rather better durability either in standard curing or the accelerated aging experiment .

其中以粉煤灰50%、硅灰10%取代普通硅酸盐水泥的试验组，无论是试验室标准养护或是加速老化试验都表现出最优的耐久性。

The ordinary portland cement of 425R type was produced by the industrial waste slags , gangue , liquid slag , phosphate slag , manganic slag and phosphogypsum .

利用工业废渣煤矸石、液态渣、磷渣、锰渣、磷石膏生产425R型普通硅酸盐水泥。

The effect of some kinds of inorganic salts and polymerized aluminum sulfate on the setting behavior of ordinary Portland cement was discussed in laboratory under the prerequisite of alkali-free and liquid .

本论文在无碱液态的前提下，通过试验探讨了几种无机盐单独或复合添加和聚合硫酸铝对水泥凝结性能的影响规律。

This energy-saving fast hardening and high strength cement has stable final strength , compared with ordinary Portland cement , about 20 % coal could be saved and clinker output could increase 10 % or so .

所制得的节能型快硬高强水泥，其后期强度也比较稳定，与普硅水泥相比，煤耗降低约20%，熟料产量增加10%左右。

The relative resistance to TSA of the cements is outlined below , from best to worst : sulphoaluminate cement , sulfate resisting Portland cement , ordinary Portland cement .

不同品种水泥的抗TSA侵蚀能力由高到低依次为：硫铝酸盐水泥>抗硫酸盐水泥>普硅水泥；

The structure function , safety and durability of ordinary portland cement concrete structures can not be guaranteed due to external natural environment and vehicle load and other factors , leading to a decline of the service life of concrete structures .

普通水泥混凝土结构由于在外界自然环境和车辆荷载等多种因素影响下，其结构功能化下降、安全性和耐久性得不到保障，直接影响混凝土结构的使用寿命。

The compressive strengths of the cement at 3 d and 28 d reach as high as 30.9 MPa and 98.8 MPa , respectively , and the flexural strengths are lower compared with ordinary portland cement .

与普通硅酸盐水泥相比，碱–磷渣胶凝材料的抗压强度较高，其3d和28d抗压强度分别可达到30.9MPa和98.8MPa，但其抗折强度相对较低。

The results showed that the characteristics of the change in volume of alkali-activated cementing materials under drying and wetting conditions were low bulking factor and high theirs own shrinkage and high drying shrinkage against ordinary Portland cement .

结果表明：与水泥相比，碱激发胶凝材料在干湿条件下体积变化的特点是湿胀小，自身收缩大，干缩大。