水泥

Cement and silver sand are used as the basis materials for solidifying galvanized sludge containing heavy metals such as Ni,Cr and Cu,the lixivium test to solidified matter shows that the effect of solidifying galvanized sludge with cement is good.

采用水泥和细砂作固化基材处理含Ni、Cr、Cu等重金属的电镀污泥，对固化块的浸出试验表明：水泥固化该电镀污泥效果良好，固化过程中加入适当的螯合剂KS-3，可以提高固化效果，并对固化块在不同pH浸取剂下的重金属浸出浓度进行了研究。

MAIN OUTCOME MEASURES: Number of trabecular bone closely or not closely connected by bone cement section surrounding to calculate the rate of combination; condition of surfaces of marrow cavity and bone cement in the column by amplifier.

主要观察指标：观察CT片，测出骨水泥截面周围与骨小梁结合紧密者与非结合者的个数，计算结合率。用放大器材观察骨髓腔内表面及骨水泥内柱表面情况。

Based on lots of literature and information, this paper has engaged in deep studies and brought forth a new kind of matchboard cement concrete pavement. Firstly, based on the theory of elastic thin slab and elastic subgrade, this paper has discussed the strong points and weaknesses of existed mechanics models of cement concrete pavements. Then, integrating each model's strengths and considering the practical conditions, this paper has put forward reasonable simulating models as well as basic mechanics hypothesis.

本课题在大量文献资料和作者深入研究的基础上，提出了一种新型企口板水泥混凝土路面结构，具体工作如下：(1)根据弹性薄板和弹性地基板基本理论，讨论了现有水泥混凝土力学模型的优缺点，并根据本课题的实际需要，综合各力学模型的长处，得到合理的力学仿真模型，并给出其基本假设。

Thirdly, with FEM analysis software ANSYS, this paper has fulfilled appropriate pavement FEM models. Selecting right loading locations and parameters, this paper has simulated contact behaviors of limited dimension cement concrete pavement with joints afterwards. The mechanics response results and load transfer ability results of matchboard joints have obtained and the effect of reinforcing steel bars has gained too.

3利用大型通用有限元分析软件ANSYS，建立合理的路面模型，选择合适的荷载位置和荷载参数，模拟有限尺寸设接缝水泥混凝土路面的接触行为，得到水泥混凝土路面的力学性能和接缝传荷能力等结果，并考虑了有无钢筋对路面性能的影响。

The feasibility of chromium residue as cement mineralizer was proved theoretically and practically.

研究对比了掺加铬渣前后水泥制品、"三废"排放和装置消耗的各项性能指标，得出了铬渣作水泥矿化剂的最佳掺加量。

PTFE and NPG exhibit a poor biocompatibility, while β-TCP and CPC have a good biocompatibility, and CPC is the most biocompatible of all the biomaterials tested.

聚四氟乙烯和NPG的生物相容性程度较差，β-磷酸三钙和固化的磷酸钙骨水泥的相容性较好，尤其是固化的磷酸钙骨水泥。

This paper mainly deals with these two parts:l.the effect of hydrosoluble HP,fibermesh and FDN on cement mortars bend resistant strength and compressive strength under the same operating conditions and with different HP mixtures;2.the effect of HP,FDN moderator,fly ash on the durability of concrete.that is the performance of resisting osmose,erosion and freeze thawing.

研究了HP水溶性高分子"纤维"、FDN高效减水剂与粉煤灰双掺配制的高性能混凝土的耐久性(抗渗透、抗硫酸盐侵蚀、抗冻融性能)。试验结果表明：HP水溶性高分子"纤维"对水泥砂浆和混凝土具有显著的增韧、增强作用，且水泥砂浆的抗压强度随着HP水溶性高分子"纤维"掺量的增加(2%-6%)而提高，抗折强度则降低；在混凝土中加入HP水溶性高分子"纤维"后，抗压强度随着掺量的增加2。

Magnesium oxychloride cement is a kind of gel material, which has asimple manufacture process and abundant resources.

镁质水泥是一种生产工艺简单、原料资源丰富的胶凝材料，具有凝结硬化快、强度高等优良特性，已广泛用于包装、隔墙、装饰、石材等行业，但由于其耐水性差，影响了它的推广应用，因此镁水泥的硬化和抗水性研究对其推广应用具有重要意义。

The results show that the drying shrinkage of magnesium oxychloride cement paste at 42 d was 1 400×10-6 under drying conditions.

采用不同掺合料与骨料配制氯氧镁水泥基材料，分别在干燥和潮湿环境下，对氯氧镁水泥基材料的干燥收缩和潮湿膨胀变形进行实验研究与变形机理分析。

The composition and properties of phosphate cement,the requirment of its materials needed are discussed.

阐述了磷酸盐水泥的组成和对各种组成材料的要求以及磷酸盐水泥的性能。

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。