水泥浆

The retarding effect of boracic acid on the sulphoaluminate was unstable, but the composite of boracic acid and accelerating admixture could improved the retarding effect and early strength, and the appropriate boracic acid could increase the later compressive strength of the cement.

结果表明，高效减水剂FDN与硫铝酸盐水泥相容性很好，减水效果明显；硼酸对硫铝酸盐水泥的缓凝效果不稳定，但通过复掺早强促凝组分能改善其缓凝效果和早期强度，且适量的硼酸能提高水泥浆的后期强度。

The analytical results show that the use of cement slurries having dilatant rheology is more favorable for mud displacement efficiency.

所得结论表明：胀流型水泥浆有利于提高泥浆的顶替效率。

Check cement tiles around the thin line where there is no mold, fungus was found, spraying water mixed with borax or white vinegar and water, it is easy to wipe out mold.

检查磁砖周围水泥浆细线的地方有没有霉菌，发现霉菌时，喷以硼砂混合水、或白醋及水，很容易把霉菌擦拭掉。

And it can give the oil well cement stone the ability of "anti-corrosion","the high endurance of the cement sheath","better flexibility", and "improving the mechanical deformation highly".

本文还探讨了胶乳降失水、防窜和改善水泥石性能的作用机理，对于研究开发和现场应用胶乳油井水泥浆体系具有较好的指导作用。

The porosity and pore size distribution of HVFA pastes and concretes were determined by autoscan porosimeter. The results show that excessive fly ash content and comparatively high water-cementitious materials ratio will cause a big increase in porosity and harmful pore in HVFA pastes.

首次把X射线小角散射技术用于测定高掺量粉煤灰水泥浆体气孔—固体界面的分形维数，并就粉煤灰掺量、水胶比对气孔—固体界面分形维数的影响进行了分析，发现过高的粉煤灰掺量和较大的水胶比均会使分形维数大幅度增加。

The dosages of two different polynaphthalene sulphonate superplasticizers were selected according to the adaptability index including fluidity of cement paste,water-reducing ratio,and slump and strength development of concrete.

采用水泥浆体流动度、混凝土减水率、坍落度及强度增长率等指标确定了2种萘系高效减水剂的掺量，研究了二者在此掺量下对相同配比砂浆的流动度及经时损失、开裂敏感性及干湿变形的影响。

On the basis of the produced oil little while drilling using the oil based mud and the difficult to injected water, this paper evaluates compatibility among the filtrate of drilling fluid,completion fluid, slurry,injected water and formation water and studies the effect of injectability on cores which are pullulated by the filtrate and oil.

针对现场油基钻井液所钻井出油少、注水困难等问题，评价了油基钻井液滤液、完井液、水泥浆、注入水、地层水间的配伍性，以及油基钻井液滤液、原油对岩心动静污染后吸水能力的影响。

This paper concentrates on the influence of mineral admixture(such as slag powder and fly ash) and superplasticizer on the flowability of cement paste.

通过矿渣微粉单掺、矿渣微粉与不同的高效减水剂双掺、矿渣微粉与粉煤灰双掺以及矿渣微粉、粉煤灰与高效减水剂三掺来研究水泥浆体的流动度与矿渣微粉之间的关系。

The permeable cement system is mainly used in oil and gas wells for sand control and water plugging.

以微细水泥、石英砂为基本材料，增渗剂A、分散剂SXY和降失水剂HS 2A等为外加剂，配制出了一种适合油气井防砂、堵水的渗透性水泥浆。

Under the condition of fresh water and 15%NaCl solution, the slurry is lower fluid loss, good rheological property and stable settlement, the set cement has higher compressive strength, which is suitable for cementing oil and gas wells in high pressure salt bed.

该水泥浆在淡水和含15%NaCl的情况下均具有较低的失水、较好的流变性能和沉降稳定性等性能，凝固水泥石具有较高的强度，适用于高压盐层油气井的固井施工。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。