查询词典 cement

To attain the same strength grade, the content of cement in cement fly-ash stabilized hoggin has reduced by 0.5~1% comparing with cement stabilized hoggin. This material has a capability of adapting with different aggregate's gradation and the 4.75mm passing rate can reduce to 30%. Through the studying about the mechanical property of cement fly-ash stabilized hoggin, this manuscript discover that the material has good strength growing performance that its 90d strength growing rate is 385% and its splitting strength that the 7d splitting strength is 0.347MPa and the 90d splitting strength is 0.700MPa accord with requirement in the norm.

粉煤灰处于最佳掺量时，通过粉煤灰的填充、活性等作用，使材料在达到相同强度等级，水泥剂量降低0.5～1%；并且对集料级配具有更好的适应性能且能使集料4.75mm以下通过率降低至30%左右；而且能有效提高材料的强度增长率，90d强度增长率高达385%左右；同时，降低回弹模量16%左右，对材料的抗裂性能有显著的改善作用。

Capable of producing aluminate, sulphoaluminate, admixture three series over 10 varieties, main products are cement, PAC, low alkalinity aluminum sulfate cement, hard-Express expansion sulphoaluminate Cement, double-quick cement, concrete expansion agent, quick-setting agent, efficient sealing agent, aluminum powder and calcium, such as expansion of the clinker.

能生产铝酸盐，硫铝酸盐，外加剂三大系列十多个品种，主导产品有铝酸盐水泥、聚合氯化铝，低碱度铝硫酸盐水泥，特快硬微膨胀硫铝酸盐水泥，双快水泥，混凝土膨胀剂，速凝剂，高效堵漏剂，铝酸钙粉和膨胀熟料等。

On the structural properties of soil-cement mixtures and to expect to obtain important conclusions for soil-cement application not only to the attached construction of on-going project of but to other future soil-cement application where soil-cement, as an alternative to rock riprap for slope protection, is not locally available.

期能获得相关研究成果，以提供执行中之湖山水库计画，在其附属工程方面之应用，或者作为日后其他水库工程计画案，在大坝坡面保护工之抛石材料不易取得时，当作替代方案之规划设计参考。

The Bulk-cement Delivery Tank Truck is not only the vigorously promoted China's main cement transport bulk carriers, but also the main instrument to delivery the cement in the cement of oil and gas wells, the bulk transport can be greatly save the resources, reduce the damage to the environment and reduce air dust pollution, having great strategic significance to the development of our national economy.

气动下灰车是我国大力推广水泥散装运输的主要运载工具，也是有气井固井作业时水泥运载和输送的主要工具，水泥的散装运输可以大大节约资源，减少对环境的破坏，减少空气中粉尘污染，对我国国民经济的发展具有重大的战略意义。

To explore the hydration process of Portland cement-fly ash system, the reaction degree of fly ash and Portland cement,non-evaporable water content,amount of hydration products,porosity and compressive strength of pure cement pastes and cement-fly ash pastes were studied at various curing ages,water-to-binder ratio,and fly ash replacement percentages.

为考察粉煤灰对水泥水化进程的影响，系统研究了水泥粉煤灰浆体在不同养护龄期、水胶比、粉煤灰掺量下水泥和粉煤灰反应程度、非蒸发水数量、水化产物数量、孔结构和浆体力学性能。

This paper, aiming at the weak points of the low early strength and the slow setting and hardening of portland fly-ash cement , according to the forming mechanism of cement clinker minerals, cement clinker minerals are choosen, fly ash is used as a substitute of clay as raw materials, early and high strength type cement clinker has heen developed, the amount of alit in the clinker is very high.

本文针对粉煤灰水泥早强低，凝结硬化慢等缺点，根据水泥熟料矿物的形成机理，用粉煤灰代替粘土作原料，对熟料矿物进行优化组合，成功地研制出了一种高硅酸三钙的早期强度高的水泥熟料，这种熟料可掺入30％一40％粉煤灰，生产出425R型粉煤灰水泥。

A study on pore structure of mortar specimens from high belite cement, Portland cement and medium-heat cement was carried out and the structure of cement paste of HBCC was investigated with the help of theory and test method for high molecular compounds.

本文对高贝利特水泥、硅酸盐水泥、中热水泥胶砂的孔结构进行了观察分析，并借鉴高分子学科的理论和试验方法，初步探讨高贝利特水泥混凝土中C-S-H凝胶的结构。

Compatibility of high belite cement, Portland cement and ordinary Portland cement with superplasticizer and effect of mineral admixtures on the compatibility of high belite cement have been studied with the test of the workability of concrete as reaffirmation.

结果表明：高贝利特水泥具有优异的与高效减水剂相容性，具备优良的施工性能。

In this paper, the marine soft soil is mixed with 10% cement added with 0.5% NaOH and 0.5% Na2CO3 separately, which form two types of new cement-soils. Comparing with the undisturbed soil and the 20% cement-soil results in that the alkalescence additive can contribute to generate a large number of needle-like, rod-like or fibriform hydrate calcium silicate crystals. The hydrate calcium silicate crystals can inhibit the generation of calcic alum crystal which would bring expansive action. At the mean time, it can separate out hydrate calcium. The hydrate calcium silicate crystals and hydrate calcium constitute the filling and inclusions together among soil particles and on the surface of soil particles, which cut down the interstices of cement soil obviously. Therefore, the soil mass can be reinforced and the intensity can be improved.

现场试验中将海积软土与分别掺入0.5%NaOH和0.5%Na2CO3的10%水泥就地搅拌，形成两种新型水泥土，在与原状土及20%纯水泥土进行比较后，发现碱性外掺剂可以促使生成大量针状、棒状或纤维状水化硅酸钙晶体，抑制了能产生膨胀作用的钙矾石的生成，同时，有Ca2晶体析出，它们共同构成土颗粒间和土颗粒表面的充填物和包裹物，使水泥固化土的孔隙明显减小，密度和强度得到极大提高。

For patients unfit for long revision procedures, and when the cement mantle is well preserved, especially in the peritrochanteric region, cement-in-cement revision to a longer stem, following adequate preparation of the old mantle to promote bonding between new and old cement, is possible.9 Unpublished data and personal communication with the Hip Unit of the Royal Devon and Exeter Hospital have provided us with encouraging results in this group of patients.

由于患者不适宜进行时间较长的翻修手术，当其骨水泥壳套得以完整保存的时候，尤其是在粗隆周围区域，对老的壳套进行足够的准备工作，以促进新老骨水泥之间的结合后，进行更长柄的骨水泥对骨水泥翻修也是可能的[9] 。从英国得文暨艾克斯特皇家医院髋关节科提供给我们的一些未发表的数据和个人的信息来看，这一组患者有着令人鼓舞的结果。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。