摘 要：以花岗岩石粉完全取代粉煤灰作为生产加气混凝土砌块的硅质材料，选出石灰用量、铝粉用量和水泥用量3种主要因素，通过对比试验，研究了各因素对加气块抗压强度和干密度的影响，获得了最优配合比，并以此配合比制备了加气混凝土砌块，确定了砌块的强度等级和干密度等级，并对其进行了抗冻性试验，结果表明，其耐久性符合规范规定。 Abstract: Using the granite powder, totally instead of the fly ash, as the siliceous material in aerated concrete block production, and choosing three main factors, including the dosage of lime, the dosage of aluminum powder and the dosage of cement, through contrast experiment, the effect of the three factors on the aerated block’s compressive strength and dry density was studied to obtain the optimum mixture ratio. The intensity level and the dry density level of the block were determined, the frost resistance experiment on the block was carried out, the result showed that its durability conformed to the stipulations of the specification.

赵更歧,杜慧莹,鲁渊.花岗岩矿石废料加气混凝土砌块试验研究[J].混凝土与水泥制品,2017(1):88-90. ZHAO G Q,DU H Y,LU Y.Experimental Research on Aerated Concrete Block with Granite Ore Waste[J].China Concrete and Cement Products,2017(1):88-90.

摘 要：以攀钢钢渣为主要原料，研究了四种不同细度钢渣粉的主要特性及其对水泥胶砂强度的影响，同时研究了不同掺量钢渣粉和钢渣粉与粉煤灰组成的复合胶凝材料对水泥胶砂强度的影响。结果表明，在钢渣粉掺量为30%时，钢渣粒度越细，比表面积越大，活性指数越高；平均粒径为21.36μm，比表面积为450.8m2/kg的钢渣粉在掺量不大于10%时，28d活性指数可大于100%，但进一步增加掺量后水泥胶砂强度不断降低；钢渣粉和粉煤灰组成的复合胶凝材料的活性指数高于纯钢渣粉和粉煤灰的活性指数。 Abstract: The main characteristics of four kinds of steel slag powder and influence on the strength of cement mortar were studied by using Panzhihua steel slag as the main raw material. At the same time, the effect of different amount of steel slag powder on the strength of cement mortar was studied. The influence of the composite cementitious material composed of steel slag powder and fly ash on the strength of cement mortar was also studied. The results showed that when the amount of steel slag powder was 30%, surface area increased as particle size of steel slag decreased and the activity index increased. For the steel slag powder whose average particle size is 21.36μm and surface area is 450.8m2/kg, the dosage was not more than 10%, the 28d activity index was greater than 100%. However, the strength of cement mortar decreased as amount of steel slag powder increased. The activity index of composite cementitious material composed of steel slag powder and fly ash was higher than that of pure steel slag powder and fly ash.

黄阳,王维清,郑奎,等.攀钢钢渣粉用作水泥活性混合材料的研究[J].混凝土与水泥制品,2017(1):84-87. HUANG Y,WANG W Q,ZHENG K,et al.Study on Steel Slag Powder Used for Cement Reactive Material[J].China Concrete and Cement Products,2017(1):84-87.

摘 要：以小于4.75mm的矿渣颗粒为集料，以P·O 42.5R水泥为胶凝材料，辅以高效减水剂，用静压压制的成型工艺制备了水泥基声屏障，分析讨论了材料的抗压强度以及水灰比、成型工艺、材料厚度对其吸声性能的影响。结果表明，抗压强度随水灰比的增大而先增大后减小，随成型压力的增大而增大；吸声系数随着水灰比的增大而先增大后减小，随着成型压力的增大而降低；其降噪系数随着材料厚度增加而先增大后减小。当抗压强度达到13.6MPa、材料厚度8cm时，材料的降噪系数为0.65，500Hz、630Hz、800Hz、1000Hz四个频率的平均吸声系数为0.768，可以作为铁路声屏障材料。 Abstract: Using the size below 4.75mm of slag particles as aggregate and the P·O 42.5R cement as cementitious material, with adding superplasticizer, the cement-based sound barrier materials were prepared by compression molding process of static pressure. The compressive strength of materials and the effects of water-cement ratio, molding process, materials thickness on the sound-absorption property were discussed. The results showed that the compressive strength of materials increased first then decreased with the increase of water-cement ratio, and increased with the increase of molding pressure. The sound absorption coefficient of soundbarrier materials increased first then decreased with the increase of water-cement ratio, and decreased with the increase of molding pressure. The noise reduction coefficient increased first then decreased with the increase of materials thickness. When the 28d compressive strength at 13.6MPa and the materials thickness at 8cm, its noise reduction coefficient was 0.67, and the average sound absorption coefficient of four frequency at 500Hz、630Hz、800Hz、1000Hz was 0.768. It could be applied as railway sound-absorbedbarrier materials.

全明,李玉香,陈万涛.矿渣集料制备水泥基铁路声屏障的研究[J].混凝土与水泥制品,2017(1):80-83. QUAN M,LI Y X,CHEN W T.Research on Railway Cementitious Sound-absorbed Barrier Prepared by Slag Aggregate[J].China Concrete and Cement Products,2017(1):80-83.

摘 要：基于娄山关隧道渗漏水病害现状及成因分析，考虑不同渗漏形式、不同渗漏部位，完善和改进了隧道渗漏水病害等级划分，提出了公路隧道渗漏水的单个病害等级和总体病害等级的划分标准，可为渗漏水病害的治理方案提供依据。 Abstract: Based on the state causes analysis of leakage of Loushanguan tunnel, considering the different leakage forms and position, the level division of leakage tunnel was improved. The division standard for the level of a single leakage and the total leakage was proposed, which could provide theoretical basis for the leakage treatment.

杨婕,何国华.隧道渗漏水病害成因分析及等级划分标准[J].混凝土与水泥制品,2017(1):76-79. YANG J,HE G H.Analysis on Disease of Tunnel Leakage and Level Division Standard[J].China Concrete and Cement Products,2017(1):76-79.

摘 要：作为复合地基领域的一个重要分支，长短桩复合地基相对于传统复合地基在控制沉降及减少工程造价方面发挥了重要作用。基于长短桩复合地基的复杂性，考虑对传统复合地基研究成果的继承以及相互作用角度进行深化，从“复合地基”及“相互作用”两个方面，分别总结了各自领域的研究现状和发展趋势。分析了模型建立、非线性分析、假定分析三个方面长短桩复合地基研究存在的问题，并对其中的核心问题进行了概括。 Abstract：As an important branch in the field of composite foundation, long-short-pile composite foundation plays an important role in controlling settlement and reducing engineering cost compared with traditional composite foundation. Based on the complexity of long-and-short piles composite foundation, the research status and development trend have been concluded from the point view of the traditional composite foundation’s succession and deepen. The problems that in the model establishment, nonlinear analysis, assumption analysis of the long-and-short piles composite foundation have been analyzed, and the core issues have also been summarized.

侯思强,郭院成,李明宇.长短桩复合地基桩土相互作用问题探讨与分析[J].混凝土与水泥制品,2017(1):70-75. HOU S Q,GUO Y C,LI M Y.Discussion and Analysis on Interaction of Long-short-pile Composite Foundation Soil[J].China Concrete and Cement Products,2017(1):70-75.

摘 要：研究了不同聚灰比（P/C）时，聚合物乳液对不同龄期的水泥砂浆湿表观密度、抗压、抗折强度及黏结强度的影响。结果表明，加入聚合物纯丙乳液后，水泥砂浆的湿表观密度随乳液掺量的增加先增高后小幅度减少；水泥砂浆抗折、抗压强度随乳液掺量的增加呈现先增高后降低的趋势，水泥砂浆的黏结强度随乳液量的增加呈现明显增加。同时，研究了在固定聚灰比时消泡剂对水泥砂浆的性能影响，结果表明，掺入消泡剂可以有效改善水泥砂浆性能，消泡剂的掺量在0.2%时水泥砂浆的力学性能效果最佳。 Abstract：The effects of polymer emulsion on wet bulk density, compressive strength, flexural strength and bond strength of cement mortar at different polymer-cement ratio (P/C) were studied. The results showed that after adding pure acrylic polymer emulsion, the wet bulk density of cement mortar decreases with the increasing of the emulsion at first and then present a small decrease. The flexural and compressive strength of cement mortar increase first and then decrease with the quantity of emulsion increasing. The adhesive strength with the amount of emulsions increasing showed a marked increase. At the same time, the research indicated that in the fixed ratio of polymer to cement, the defoaming agents played a positive role on properties of cement mortar. It can improve the performance of cement mortar effectively. The results also showed that mechanical properties of cement mortar have the best effect when the dosage of the defoaming agent at 0.2%.

阮雪琴,谷伟.聚合物乳液对水泥砂浆力学性能的影响[J].混凝土与水泥制品,2017(1):67-69. RUAN X Q,GU W.Effects of Polymer Emulsion on Mechanical Performance of Cement Mortar[J].China Concrete and Cement Products,2017(1):67-69.