目前，建筑行业消耗了大量的自然资源，破坏了生态环境。在建筑活动中如何实现资源与环境综合效益的最大化是个难题。李纪伟等编著的《基于资源与环境综合效益的绿色建筑技术评价》一书分析了建筑活动过程中材料生产、建设施工、运营维护、废弃拆除4个阶段对于环境的影响和资源的消耗，根据系统动力学分析方法预测了12种资源、环境因素的影响，根据各种因素，提出了基于资源环境综合效益的绿色建筑技术评价方法，并编制出相应的评价工具以验证评价方法的合理性。笔者通过对该书的学习，总结了以下几个方面的内容以供参考。

李丽萍.资源环境综合效益下绿色建筑技术评价方法研究—评《基于资源与环境综合效益的绿色建筑技术评价》[J].混凝土与水泥制品,2020(9):97.

装配式混凝土建筑结构具有施工速度快、施工工艺简单、环境友好、节省资源的特点，是我国建筑工业化发展的主要方向。影响装配式混凝土结构稳定性的关键环节是梁柱连接处，其直接决定着结构框架的内力分配、弯矩传递及整体性能。目前，我国对装配式结构节点力学性能规律的认识还不足，导致节点实际应用受到限制。为了加强其认识，张延年等人编著了《装配式结构节点抗震性能》一书，该书以物理试验和理论分析为研究方法，从强度、刚度、耗能、抗震、应力、应变等方面，全面系统地对阶梯钢板式节点、钩挂式节点、加强环节点的抗震性能和机理进行了分析，揭示了3类节点抗震承载力、强度退化、刚度退化、耗能行为、力学效应的变化规律。笔者基于该书的学习，总结重点章节如下。

陈小兵.装配式结构节点应力分析与抗震性能研究—评《装配式结构节点抗震性能》[J].混凝土与水泥制品,2020(9):96.

摘   要：研究了不同掺量聚丙二醇对碱激发矿渣（AAS）水泥砂浆流动度、力学性能和干缩的影响，并通过电化学交流阻抗法（EIS）探讨了其对砂浆水化过程的影响。结果表明，聚丙二醇的掺入能够显著提高AAS水泥砂浆的流动性，且掺量越大，流动性提高越明显，但砂浆密度有轻微降低。聚丙二醇的掺入降低了AAS水泥砂浆的抗折、抗压强度，但是随着龄期的增长，抗折、抗压强度均有所提高。掺入聚丙二醇能有效降低AAS砂浆的干缩。当聚丙二醇掺量为1%～3%时，各龄期的孔溶液电阻值（R1）较基准组有所减小，聚丙二醇抑制了AAS砂浆的水化反应。当掺量为5%～9%时，各龄期的R1大于基准组，AAS砂浆水化反应加快，且R1随着聚丙二醇掺量的增加而增大。 Abstract: The effect of different content of polypropylene glycol on the fluidity, mechanical properties and shrinkage of alkali-activated slag（AAS） cement mortar was studied, and its influence on hydration process of AAS mortar was discussed by electrochemical impedance spectroscopy（EIS）. The results show that the polypropylene glycol can improve the fluidity of AAS cement mortar, and the greater the content of polypropylene glycol, the more obvious the fluidity increase, but the density of the mortar slightly decreases. The flexural and compressive strength of AAS cement mortar decrease with the addition of polypropylene glycol, but with the increase of age, the flexural and compressive strength increase. Polypropylene glycol can effectively reduce the shrinkage of AAS mortar. The pore solution resistance（R1） of AAS mortar is lower than that of the control group when the polypropylene glycol content is 1%~3%, polypropylene glycol inhibits the hydration reaction. When the content is 5%~9%, R1 is greater than that of the control group, the hydration reaction of AAS mortar is accelerated, and R1 increases with the increase of the polypropylene glycol content.

张兰芳,付彬鸿,宋松松,等.聚丙二醇掺量对碱矿渣水泥砂浆性能和水化过程的影响[J].混凝土与水泥制品,2020(9):92-95. ZHANG L F,FU B H,SONG S S,Effect of Polypropylene Glycol Content on Performance and Hydration Process of Alkali Activated Slag Cement Mortar[J].CHINA CONCRETE AND CEMENT PRODUCTS,2020(9):92-95.

摘   要：为研究玻璃粉和钢渣协同使用对自密实混凝土力学性能的影响，分别以20%、30%和40%的玻璃粉替代水泥，40%、60%和80%钢渣替代细骨料，制备了9种不同配合比的自密实混凝土试件，通过坍落度试验、J型环试验、V型漏斗试验和L型仪试验测试了新拌自密实混凝土的工作性，并分析了硬化后自密实混凝土的抗压强度、劈裂抗拉强度、抗折强度和弹性模量。结果表明，当玻璃粉和钢渣协同使用时，可以显著提高钢渣替代细骨料的比例，替代比例高达80%；自密实混凝土的和易性随着玻璃粉含量的增加而增大，随钢渣掺量的增加而减小；抗压强度、劈裂抗拉强度、抗折强度和弹性模量随钢渣掺量的增加而增加，随玻璃粉掺量的增加逐渐减小。自密实混凝土中钢渣和水泥的最佳掺量分别为80%和20%。 Abstract: In order to study the effect of glass powder and steel slag on the mechanical properties of self-compacting concrete, 9 kinds of self-compacting concrete specimens with different mix proportions were prepared by using 20%, 30% and 40% glass powder instead of cement, 40%, 60% and 80% steel slag instead of fine aggregate, respectively. The workability of fresh self-compacting concrete was tested by slump flow test, J-Ring test, V-funnel test and L-box test, and the compressive strength, splitting tensile strength, flexural strength and elastic modulus of hardened self-compacting concrete were analyzed. The results show that when glass powder and steel slag are used together, the substitution ratio of steel slag to replace fine aggregate can significantly increase, and the substitution ratio is as high as 80%. The workability of self-compacting concrete increases with the increase of glass powder content, and decreases with the increase of steel slag content. The compressive strength, splitting tensile strength, flexural strength and elastic modulus increase with the increase of steel slag content, and decrease with the increase of glass powder content. The optimum content of steel slag and cement in self-compacting concrete is 80% and 20%, respectively.

孟继军.玻璃粉和钢渣对自密实混凝土力学性能的影响[J].混凝土与水泥制品,2020(9):88-91. MENG J J.Effect of Glass Powder and Steel Slag on the Mechanical Properties of Self-compacting Concrete[J].CHINA CONCRETE AND CEMENT PRODUCTS,2020(9):88-91.

摘   要：监测了不同施工季节、模板材质和拆模时间等工况下某地铁车站主体结构侧墙混凝土温度、应变历程，分析了其对混凝土早期收缩开裂的影响。结果表明，施工时气温越高，侧墙混凝土温升、温降、温降速率以及温降收缩越大，开裂风险也显著上升。使用钢模板有利于早期散热，可显著降低侧墙混凝土的温升与温度峰值，降低其开裂风险。延长木模板拆模时间可减小侧墙混凝土的温降速率，利用混凝土的徐变效应抑制开裂风险。上述施工因素变化过程中，侧墙混凝土的里表温差及其引起的开裂风险总体较小。 Abstract: The temperature and strain history of sidewall concrete of a metro station main structure were monitored under conditions including different construction seasons, form materials and its removal time, based on which the effects of these conditions on the early age cracking of sidewall concrete were analyzed furtherly. The results show that the temperature rise, temperature drop, temperature drop rate and shrinkage deformation at temperature drop stage of sidewall concrete increase with the increase of air temperature during construction, and the cracking risk of sidewall concrete also rises obviously. The application of steel form helps hydration heat dissipation and decreases the temperature rise and peak of sidewall concrete significantly, as well as the cracking risk. Removing wood form later decreases the temperature drop rate and cracking risk of sidewall concrete because of creep effect. The temperature difference between center and surface of sidewall concrete and the cracking risk caused by it are always small under the above variable construction conditions. 

徐文,李忠超,张建亮,等.施工因素对地铁车站侧墙混凝土早期裂缝影响监测分析[J].混凝土与水泥制品,2020(9):84-87. XU W,LI Z C,ZHANG J J,et al.Monitoring Analysis of Influence of Construction Factors on Early Age Cracking of Sidewall Concrete in Metro Station Engineering[J].CHINA CONCRETE AND CEMENT PRODUCTS,2020(9):84-87.

摘   要：提出了以DL型里氏硬度计作为检测设备的钢筋套筒连接灌浆料抗压强度无损检测方法，测试了灌浆料试件的表面硬度，并建立了测强曲线。研究结果表明，灌浆料试件的表面硬度基本服从正态分布，前后两次表面硬度测试结果的重复性较好。试件的表面硬度与抗压强度具有强正相关性，推荐采用指数回归方法建立测强曲线，相关系数可达0.945。 Abstract: A non-destructive testing method for the compressive strength of grouting materials for steel sleeves using DL type Leeb hardness tester as a testing device was put forward, and the surface hardness of grouting materials was tested and the strength curve was established. The results show that the surface hardness of grouting materials is normally distributed, and the surface hardness test has good repeatability. The surface hardness of the specimen is strongly correlated with the compressive strength, and it is recommended to use the exponential function regression to establish strength curve, and the correlation coefficient can reach 0.945.

吴玉龙,丁晨晨,顾盛,等.表面硬度法检测套筒灌浆料抗压强度试验研究[J].混凝土与水泥制品,2020(9):79-83. WU Y L,DING C C,GU S,et al.Experimental Study on Compressive Strength of Grouting Materials for Sleeves by Surface Hardness Method[J].CHINA CONCRETE AND CEMENT PRODUCTS,2020(9):79-83.