纤维水泥及制品_2022_《混凝土与水泥制品》杂志社

头部文案

发布时间：2020-01-06 00:00:00

全国建材科技期刊
全国中文核心期刊
中国科技论文统计源期刊
万方数据-数字化期刊群入网期刊
中国学术期刊（光盘版）全文收录期刊

华东地区优秀科技期刊
江苏省期刊方阵“双效期刊”
中国期刊网全文收录期刊
中国科技期刊数据库全文收录期刊



全部文章

纤维水泥及制品

改性玄武岩纤维对矿渣水泥砂浆性能的影响

罗添禄1，李泽刚2，宋杨1，曾睿1，张龙2，陈洪根1，李聪1

2022年第11期

摘要

引用本文

摘要：采用低温等离子接枝方式对玄武岩纤维（BF）进行改性处理，研究了接枝介质（水、丙烯酸、乙醇）和处理时间（10、20、30、40 min）对BF表面接触角和比表面积的影响，并研究了接枝改性BF对矿渣水泥砂浆力学性能的影响。结果表明：经过接枝改性处理后，BF的表面亲水性增强，粗糙度增大；当接枝介质为水、丙烯酸、乙醇时，试件的28 d抗压强度与空白组和掺未改性BF试件相比均变化不大，但28 d抗折强度均明显增大，其中，接枝介质为乙醇改性BF试件的28 d抗折强度最高，韧性最好，这是由于接枝改性BF与基体之间的黏结力增大所导致的。 Abstract: Basalt fiber(BF) was modified by low temperature plasma grafting method. The effects of grafting medium (water, acrylic acid, ethanol) and treatment time (10, 20, 30, 40 min) on the surface contact angle and specific surface area of BF were studied, and the effects of grafting modified BF on the mechanical properties of slag cement mortar were also studied. The results show that the surface hydrophilicity and roughness of BF are enhanced after grafting modification. When the grafting medium is water, acrylic acid and ethanol, the 28 d compressive strength of the specimen has little change compared with the blank group and the specimen mixed with unmodified BF, but the 28d flexural strength is significantly increased. Among them, the 28 d flexural strength of the specimen with the grafting medium of ethanol is the highest and the toughness is the best, which is due to the increase of the adhesion between the grafting modified BF and the matrix.

罗添禄,李泽刚,宋杨,等.改性玄武岩纤维对矿渣水泥砂浆性能的影响[J].混凝土与水泥制品,2022(11):49-53. LUO T L,LI Z G,SONG Y,et al.Effect of Modified Basalt Fiber on the Properties of Slag Cement Mortar[J].China Concrete and Cement Products,2022(11):49-53.

纳米纤维素对混凝土性能的影响研究

刘帅1，刘巧玲1，2，杨立华1，2，聂苗苗1，张姣1

2022年第11期

摘要

引用本文

摘要：研究了纳米纤维素（CNFs）对混凝土流变性能、水化热、力学性能、抗氯离子渗透性能和抗冻性能的影响，并采用扫描电子显微镜（SEM）观察了混凝土基体的微观结构。结果表明：CNFs的掺入增大了水泥浆体的屈服应力和塑性黏度，抑制了水泥的早期水化，促进了水泥的后期水化；随着CNFs掺量的增加，混凝土的抗压、抗折强度增大；CNFs的掺入改善了基体的微观结构，提高了混凝土的抗氯离子渗透性能和抗冻性能。 Abstract: The effects of nano cellulose(CNFs) on the rheology, heat of hydration, mechanical properties, resistance to chloride ion penetration and frost resistance of concrete were studied, and the microstructure of the matrix was observed by scanning electron microscope(SEM). The results show that the incorporation of CNFs increases the yield stress and plastic viscosity of cement paste, inhibits the early hydration of cement, and promotes the later hydration of cement. With the increase of CNFs content, the compressive strength and flexural strength of concrete increase. The incorporation of CNFs improves the microstructure of the matrix, so as to improve the resistance to chloride ion penetration and frost resistance of concrete.

刘帅,刘巧玲,杨立华,等.纳米纤维素对混凝土性能的影响研究[J].混凝土与水泥制品,2022(11):54-58. LIU S,LIU Q L,YANG L H,et al.Study on the Influence of Nano Cellulose on the Performance of Concrete[J].China Concrete and Cement Products,2022(11):54-58.

岩棉纤维超轻泡沫混凝土的制备及性能研究

肖啸1，2，彭菁1，2，邵曌1，2，李爽1，2，李亮1，2，杜颖1，2，曾睿1,2

2022年第11期

摘要

引用本文

摘要：以岩棉纤维为增强材料，有机硅为改性剂，采用物理发泡法制备了超轻泡沫混凝土，并研究了其性能和微观结构。结果表明：随着有机硅掺量的增加，试件的干密度、抗压强度、体积吸水率和导热系数均降低；随着岩棉纤维掺量的增加，试件的干密度变化不明显，抗压强度增大，体积吸水率和导热系数先降低后升高；当有机硅掺量为1.0%、岩棉纤维掺量为2.0%时，超轻泡沫混凝土的综合性能最优；超轻泡沫混凝土中的气孔多为近球形，孔径尺寸分布在50~1 000 μm之间，不同孔径气孔相互堆叠且分布均匀。 Abstract: Using rock wool fiber as reinforcement material and organic silicon as modifier, the ultra-light foam concrete was prepared by physical foaming method, and the properties and microstructure were studied. The results show that the dry density, compressive strength, volume water absorption and thermal conductivity of the sample decrease with the increase of the organic silicon content. With the increase of rock wool fiber content, the dry density of the sample does not change significantly, the compressive strength increases, the volume water absorption and thermal conductivity first decrease and then increase. When the organic silicon content is 1.0% and the rock wool fiber content is 2.0%, the comprehensive performance of ultra-light foam concrete is the best. The pores in ultra-light foam concrete is nearly spherical, and the pore size is 50~1 000 μm, and the pores with different pore diameters are stacked and distributed evenly.

肖啸,彭菁,邵曌,等.岩棉纤维超轻泡沫混凝土的制备及性能研究[J].混凝土与水泥制品,2022(11):59-62. XIAO X,PENG J,SHAO Z,et al.Study on Preparation and Properties of Rock Wool Fiber Ultra-light Foam Concrete[J].China Concrete and Cement Products,2022(11):59-62.

总访问量 468,401 网站统计

官方微信公众号关闭

关于我们 | 联系我们 | 订购杂志 | 回到顶部

苏ICP备10086386号

网站建设：中企动力苏州