摘   要：以抗压强度和碳减排为核心评价指标，研究了电石渣在普通混凝土中的适配性及用其制备低碳混凝土的可行性。结果表明：普通混凝土体系中，在不同掺量电石渣取代矿粉或水泥的条件下，混凝土的28 d抗压强度均满足C30要求；低水泥低碳混凝土体系中，当电石渣取代水泥掺量为5%时，混凝土28 d抗压强度满足C30要求，其碳排放量较普通C30混凝土降低了54.05%；在电石渣与石膏的协同激发下，当水泥仅占胶凝材料比例为30%时，不仅混凝土28 d抗压强度满足C30要求，且其碳排放量较普通C30混凝土降低了47.57%；在电石渣与石膏的协同激发下，当胶凝材料用量为380 kg/m3时，成功制备出了C30全固废混凝土，其碳排放量较普通C30混凝土降低了84.32%。Abstract: The adaptability of calcium carbide slag in normal concrete and the feasibility of preparing low-carbon concrete with it were investigated with compressive strength and carbon emission reduction as evaluation criteria. The results show that, in normal concrete system, the 28 d compressive strength of concrete meets the C30 requirement under the condition that calcium carbide slag replaces mineral powder or cement with different contents. In low-cement low-carbon concrete system, when calcium carbide slag replaces cement at a content of 5%, the 28 d compressive strength of concrete meets the C30 requirement, and its carbon emission decreases by 54.05%compared to normal C30 concrete. Under the synergistic activation of calcium carbide slag and gypsum, when the proportion of cement in the cementitious materials reaches only 30%, the 28 d compressive strength of the concrete meets the C30 requirement, and the carbon emission decreases by 47.57% compared to normal C30 concrete. Under the synergistic activation of calcium carbide slag and gypsum, the C30 fully solid waste concrete is successfully prepared when the cementitious material content is 380 kg/m3, with carbon emission decreases by 84.32% compared to normal C30 concrete.

张荣华,苟余江,关素敏.电石渣低碳混凝土的制备及其性能研究[J].混凝土与水泥制品,2026(1):76-80. ZHANG R H,GOU Y J,GUAN S M.Preparation and performance study of low-carbon concrete with calcium carbide slag[J].China Concrete and Cement Products,2026(1):76-80.

摘   要：研究了胶凝材料掺量（0.05、0.10、0.15、0.20、0.25、0.30，以铁尾矿质量分数为1计）、水固比（0.07、0.09、0.11、0.13、0.15、0.17）、成型压力（5、10、15、20、25、30 MPa）对铁尾矿免烧砖抗压强度的影响，并优选出最优配合比。结果表明：铁尾矿免烧砖的最佳配合比为m铁尾矿∶m熟石灰∶m胶凝材料∶m增强剂=1∶0.1∶0.20∶0.02，最佳水固比为0.15，最佳成型压力为20 MPa，此时铁尾矿免烧砖各项性能均满足相关标准中MU25强度等级的技术要求。Abstract：The effects of cementitious material content (0.05, 0.10, 0.15, 0.20, 0.25, 0.30, with iron tailings mass fraction of 1), water-to-solid ratio (0.07, 0.09, 0.11, 0.13, 0.15, 0.17), and molding pressure (5, 10, 15, 20, 25, 30 MPa) on the compressive strength of unburned bricks with iron tailings were investigated, and the optimal mix proportion was selected. The results show that the optimal mix proportion of unburned bricks with iron tailings is as follows: miron tailings∶mhydrated lime∶mcementitious material∶mreinforcing agent=1∶0.1∶0.20∶0.02. The optimal water-to-solid ratio is 0.15, and the optimal molding pressure is 20 MPa. The corresponding unburned bricks with iron tailings meet the technical requirements of MU25 strength grade in relevant standards.

杨雪超,吴志刚,韩宇栋,等.水泥基铁尾矿免烧砖的配合比及成型工艺优化研究[J].混凝土与水泥制品,2026(1):72-75,80. YANG X C,WU Z G,HAN Y D,et al.Optimization study on mix proportions and molding processes of cement-based unburned bricks with iron tailings[J].China Concrete and Cement Products,2026(1):72-75,80.

摘   要：研究了钢渣粉平均粒径（10、20、35、55 μm）对混凝土工作性、凝结时间、绝热温升、抗压强度、体积安定性、抗氯离子渗透性能和干燥收缩性能的影响，并优选出了较优平均粒径的钢渣粉用于实际大体积混凝土工程。结果表明：随着钢渣粉平均粒径的增大，混凝土的初始、1 h坍落度基本增大，初、终凝时间均延长，各龄期抗压强度、绝热温升均降低，各龄期自由膨胀率均增大，90 d劈裂抗拉强度比降低，28 d、60 d电通量增大，120 d干燥收缩值减小；基于多指标综合评估，优选平均粒径35 μm钢渣粉以30%掺量应用于实际工程，该配合比混凝土的60 d抗压强度为38.3 MPa，满足工程应用技术要求，同时通过调控水化过程实现内部温升的调控。Abstract：The effects of steel slag powder average particle size (10, 20, 35, 55 μm) on concrete workability, setting time, adiabatic temperature rise, compressive strength, volume stability, chloride ion penetration resistance, and drying shrinkage were investigated. The steel slag powder with optimal average particle size was optimized for practical mass concrete projects. The results show that, with the increase of average particle size of steel slag powder, the initial and 1 h slump of concrete generally increases, the initial and final setting times extend, the compressive strength at all ages and the adiabatic temperature rise decrease, the free expansion rate at all ages increases, the 90 d splitting tensile strength ratio decreases, the electrical flux at 28 d and 60 d increases, and the drying shrinkage value at 120 d decreases. Based on the comprehensive multi-criteria evaluation, steel slag powder with average particle size of 35 μm at a 30% content was selected for practical engineering applications. The concrete with this mix proportion has a 60 d compressive strength of 38.3 MPa, meeting the technical requirements of engineering applications, and the internal temperature rise can be controlled by regulating the hydration process.

陈健,周晓阳,刘辉.钢渣粉粒径对混凝土性能的影响及工程应用研究[J].混凝土与水泥制品,2026(1):66-71. CHEN J,ZHOU X Y,LIU H.Study on the effect of steel slag powder particle size on the performance of concrete and its engineering application[J].China Concrete and Cement Products,2026(1):66-71.

摘   要：研究了可再分散VAE乳胶粉掺量（0、3%、5%）对工程地聚物复合材料（Engineering geopolymer composite，EGC）净浆及砂浆初凝时间、流动度、抗压强度和弯曲韧性的影响。结果表明：随着VAE乳胶粉掺量的增加，EGC净浆及砂浆的初凝时间均延长，流动度和28 d抗压强度均降低；VAE乳胶粉掺量对EGC砂浆弯曲韧性的影响与其体系内的纤维类型及掺量密切相关，在适宜的纤维体系配合比条件下，适量的VAE乳胶粉能在一定程度上提升EGC砂浆的弯曲韧性。Abstract：The effects of redispersible VAE latex powder content (0, 3%, 5%) on the initial setting time, fluidity, compressive strength, and bending toughness of engineering geopolymer composite(EGC) paste and mortar were investigated. The results show that with the increase of VAE latex powder content, the initial setting time of both EGC paste and mortar prolongs, and the fluidity and 28 d compressive strength both decrease. The effect of VAE latex powder content on the bending toughness of EGC mortar is closely related to the fiber type and content within its system. Under appropriate mix proportion of fiber systems, the incorporation of appropriate content of VAE latex powder can enhance the bending toughness of EGC mortar to a certain extent.

姚启海,王凯,张美霞,等.VAE乳胶粉对工程地聚物复合材料（EGC）性能的影响研究[J].混凝土与水泥制品,2026(1):61-65,71. YAO Q H,WANG K,ZHANG M X,et al.Research on the effect of VAE latex powder on the performance of engineering geopolymer composite (EGC)[J].China Concrete and Cement Products,2026(1):61-65,71.

摘   要：研究了NaOH溶液浓度（10、12、14、16 mol/L）对粉煤灰-高炉矿渣（Fly ash-granulated blast furnace slag，FA-GBFS）基地质聚合物力学性能的影响，并基于热重（TG-DTG）与压汞试验（MIP）分析了宏观力学性能与微观结构演化的关联。结果表明：随着NaOH溶液浓度的增加，试件的抗折、抗压强度均增加，抗折、抗压强度增长率基本呈先增后减的趋势，试件全温度区间内（24~1 000 ℃）的质量损失率增加，力学性能随质量损失率的增加而增加，强度增长因子降低，强度增长速率减缓，但保持正向增长；当面对质量的微小变化时，抗折强度的敏感性更高；随着NaOH溶液浓度的增加，试件的孔隙率降低，孔隙结构得到优化；随着NaOH溶液浓度的增加，试件的力学性能随孔隙率的增加而降低，强度增长因子的绝对值减小，强度对孔隙率的敏感度下降。Abstract: The effect of NaOH solution concentration (10, 12, 14, 16 mol/L) on the mechanical properties of fly ash- granulated blast furnace slag (FA-GBFS) based geopolymer was studied, and the correlation between macroscopic mechanical properties and microstructure evolution was analyzed based on thermogravimetric (TG-DTG) and mercury intrusion test (MIP). The results show that with the increase of NaOH solution concentration, the flexural and compressive strength of the specimens increase, and the growth rate of flexural and compressive strength basically shows a trend of first increasing and then decreasing. The mass loss rate of the specimens increases throughout the entire temperature range (24~1 000 ℃), and the mechanical properties increase with the increase of mass loss rate. The strength growth factor decreases, and the strength growth rate slows down, but maintains a positive growth. When faced with small changes in mass, the sensitivity of flexural strength is higher. As the concentration of NaOH solution increases, the porosity of the specimen decreases and the pore structure is optimized. As the concentration of NaOH solution increases, the mechanical properties of the specimen decrease with the increase of porosity, the absolute value of the strength growth factor decreases, and the sensitivity of strength to porosity decreases.

邵浩栋,范向前,王涛,等.NaOH溶液浓度对FA-GBFS基地质聚合物力学性能及微观结构的影响[J].混凝土与水泥制品,2026(1):54-60. SHAO H D,FAN X Q,WANG T,et al.Influence of NaOH solution concentration on the mechanical properties and microstructure of FA-GBFS based geopolymer[J].China Concrete and Cement Products,2026(1):54-60.

摘   要：研究了矿渣掺量（45%、50%、55%）、硼酸掺量（0、1%、2%、3%）对碱激发材料凝结时间、工作性、抗折强度、抗压强度和弹性模量的影响，并基于多目标平衡设计方法优化了碱激发材料的配合比。结果表明：随着硼酸掺量的增加，碱激发材料的初、终凝时间延长，流动度提升，抗折强度、抗压强度和弹性模量均降低；随着矿渣掺量的增加，碱激发材料的初、终凝时间缩短，流动度降低，抗折强度、抗压强度和弹性模量均提高；通过多目标平衡设计方法构建的优化模型可实现碱激发材料的力学与施工性能的协同调控，同时满足抗压强度、抗折强度、凝结时间等指标的要求。Abstract: The effects of slag content (45%, 50%, 55%) and boric acid content (0, 1%, 2%, 3%) on the setting time, workability, flexural strength, compressive strength, and elastic modulus of alkali-activated materials were investigated. The mix proportions of alkali-activated materials were optimized based on a multi-objective balanced design method. The results show that increasing the boric acid content prolongs the initial and final setting times, improves fluidity and reduces the flexural strength, compressive strength and elastic modulus. As the slag content increases, the initial and final setting times of the alkali-activated material shorten, fluidity decreases, flexural strength, compressive strength and elastic modulus all increase. The optimized model constructed based on the multi-objective balanced design method enables the mechanical properties and workability of the alkali-activated material to be regulated synergistically, thus simultaneously meeting requirements of compressive strength, flexural strength, and setting time.

姚震宇,甘星,邱立珊,等.碱激发材料性能的多目标平衡设计与优化研究[J].混凝土与水泥制品,2026(1):49-53,63. YAO Zhenyu, GAN Xing, QIU Lishan,et al.Multi-objective balanced design and optimization study on the performance of alkali-activated materials[J].China Concrete and Cement Products,2026(1):49-53,63.