摘   要：介绍了影响卧式离心成型超高性能混凝土（UHPC）电杆质量的关键因素，主要包括原材料选择（胶凝材料、骨料、外加剂、纤维等）、UHPC制备（投料顺序、拌和时间等）、离心成型制度（模具转速、离心时间等）及蒸汽养护控制（养护时间、养护温度等），可为卧式离心成型UHPC电杆的应用提供参考。 Abstract: The key factors affecting the quality of horizontal centrifugal formed ultra-high performance concrete (UHPC) poles are introduced, mainly including raw material selection(cementitious materials, aggregates, additives, fibers, etc.), preparation of UHPC(feeding sequence, mixing time, etc.), centrifugal formed system(mold speed, centrifugal time, etc.), and steam curing control (curing time, curing temperature, etc.), which can provide references for the application of horizontal centrifugal formed UHPC poles.

周万军,杨文志,周彦慧,等.离心成型超高性能混凝土电杆简介[J].混凝土与水泥制品,2024(8):44-46. ZHOU W J,YANG W Z,ZHOU Y H,et al.Introduction to centrifugal formed ultra-high performance concrete pole[J].China Concrete and Cement Products,2024(8):44-46.

摘   要：基于碳排放系数法，建立了装配式建筑用预制构件碳排放核算方法，研究了单位预制实心墙板、柱、梁、楼梯、叠合楼板、女儿墙、凸窗、空调板等预制构件从生产到运输过程的碳排放情况。结果表明：预制构件碳排放在528~1 008 kgCO2 /m3；梁、柱碳排放高于其他预制构件，为685~1 008 kgCO2 /m3；各环节的碳排放从大到小依次为原材料隐含碳排放CY＞原材料运输碳排放CT＞能耗碳排放CS；钢筋和水泥在原材料隐含碳排放中占比较大。 Abstract: Based on the carbon emission coefficient method, a carbon emission accounting method for prefabricated components used in prefabricated buildings was established. The carbon emissions from the production to transportation process of prefabricated solid wall panels, columns, beams, stairs, laminated floor slabs, parapets, bay windows, air conditioning panels and other prefabricated components were studied. The results show that the carbon emissions of prefabricated components range from 528~1 008 kgCO2 /m3, and the carbon emissions of beams and columns are higher than those of other prefabricated components, ranging from 685~1 008 kgCO2 /m3. The proportion of each component in the total carbon emissions from highest to lowest is embodied carbon emissions of raw materials (CY) > carbon emissions of raw material transportation(CT) > energy consumption carbon emissions(CS), with steel bars and cement accounting for a relatively large proportion in embodied carbon emissions of raw materials.  

王娟,付杰,杨光.装配式建筑用预制构件碳排放研究[J].混凝土与水泥制品,2024(8):47-50. WANG J,FU J,YANG G.Research on carbon emissions of components for prefabricated buildings[J].China Concrete and Cement Products,2024(8):47-50.

摘  要：为解决现有预制混凝土剪力墙构件尺寸偏差检验指标体系针对性差、部分指标过严、部分指标缺失等问题，系统梳理了现行标准体系中关于预制混凝土剪力墙构件的尺寸偏差检验指标要求，并在此基础上，结合不同种类预制混凝土剪力墙构件的特点，以及尺寸偏差质量检验指标与主体结构质量的关系，给出了尺寸偏差检验指标建议要求。 Abstract: To address the issues of the current inspection index system for dimensional deviations of prefabricated concrete shear wall components, such as poor specificity, overly stringent standards for some indicators, and lack of indicators, the requirements for size deviation inspection indicators of prefabricated concrete shear wall components in the current standard system are systematically sorted out. Based on this, combined with the characteristics of different types of prefabricated concrete shear wall components, and the relationship between size deviation inspection indicators and the quality of the main structure, suggestions for size deviation inspection indicators are given.

卜凡杰,韩文龙,吕晚晴,等.预制混凝土剪力墙尺寸偏差检验指标研究[J].混凝土与水泥制品,2024(8):51-56. BU F J,HAN W L,LYU W Q,et al.Research on the inspection indicators of dimensional deviation of prefabricated concrete shear wall[J].China Concrete and Cement Products,2024(8):51-56.