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    蘇州混凝土水泥制品研究院有限公司

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    發布時間:2020-01-06 00:00:00
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    節能與環保

    珊瑚-水泥復合膠凝材料性能研究及微觀分析
    珊瑚-水泥復合膠凝材料性能研究及微觀分析
    • 王卓蕾1,2,謝建斌1,3,劉思楠1,張文豪1,趙一錦1
    2020年第10期
    摘要
    引用本文
    摘 ? 要:以10%、20%、30%的珊瑚粉等質量取代水泥制備珊瑚-水泥復合膠凝材料,研究了珊瑚粉對水泥膠凝材料標準稠度用水量、凝結時間、水化放熱量、膠砂強度、電阻率和吸波性能的影響,并用XRD、SEM方法分析了珊瑚-水泥復合膠凝材料的物相和微觀形貌。結果表明:珊瑚粉會使水泥膠凝材料的凝結時間延長,水化放熱量減少,對標準稠度用水量影響不明顯;珊瑚粉對水泥膠凝材料的力學性能不利,但仍能滿足工程建設要求;摻入珊瑚粉后,試件的電阻率下降、導電性能增加、吸波性能降低;珊瑚-水泥復合膠凝材料的主要水化產物與水泥膠凝材料類似,沒有新產物生成。 Abstract: Coral-cement composite cementitious materials were prepared by replacing cement with 10%, 20% and 30% coral powder. The effects of coral powder on water consumption of standard consistency, setting time, hydration heat, flexural strength and compressive strength, resistivity and wave absorbing performance of cement cementitious materials were studied. XRD and SEM were used to analyze the phase and microstructure of coral-cement composite cementitious materials. ?The results show that coral powder prolongs the setting time of cement cementitious materials, reduces the hydration heat, and has no obvious influence on water consumption of standard consistency. Coral powder is unfavorable to the mechanical properties of cement cementitious materials, but it can still meet the needs of engineering construction. After adding coral powder, the resistivity of the specimens decreases, the conductivity increases, and the wave absorbing performance decreases. The main hydration products of coral-cement composite cementitious materials are similar to cement cementitious materials, without new products.?
    王卓蕾,謝建斌,劉思楠,等.珊瑚-水泥復合膠凝材料性能研究及微觀分析[J].混凝土與水泥制品,2020(10):87-90,95. WANG Z L,XIE J B,LIU S N,et al.Study on Properties and Microanalysis of Coral-cement Composite Cementitious Materials[J].CHINA CONCRETE AND CEMENT PRODUCTS,2020(10):87-90,95.
    超硫酸鹽水泥植生多孔混凝土性能試驗研究
    超硫酸鹽水泥植生多孔混凝土性能試驗研究
    • 黃 勁,秦節發,陳 超,石 華,譚建湘,任 政
    2020年第10期
    摘要
    引用本文
    摘 ? 要:選用一種低堿度超硫酸鹽水泥制備了多孔混凝土,研究了不同摻量脫硫石膏對多孔混凝土pH值和力學性能的影響,分析了狗牙根、高羊茅、早熟禾、黑麥草和白喜草在多孔混凝土中的植生情況。結果表明:當脫硫石膏摻量為15%~20%,P·O 52.5水泥摻量為5%時,多孔混凝土的抗壓強度最高;水膠比為0.3時,多孔混凝土的施工性和力學性能最優;脫硫石膏、P·O 52.5水泥和水膠比對多孔混凝土的pH值影響較小。制備的多孔混凝土pH值較低,能夠滿足植物生長需求,其中,高羊茅和白喜草在多孔混凝土中的植生性能最佳。 Abstract: The super sulfate cement with low alkalinity was selected to prepare the eco-porous concrete, the effects of different content of desulfurization gypsum on the pH value and mechanical properties of eco-porous concrete were studied, and the planting performance of bermudagrass, tall fescue, kentucky bluegrass, ryegrass and bahia grass in eco-porous concrete was analyzed. The results show that the compressive strength of eco-porous concrete is the highest when the content of desulfurized gypsum is 15%~20% and the content of P·O 52.5 cement is 5%. When the water-binder ratio is 0.30, the workability and mechanical properties of eco-porous concrete are optimal. The content of desulfurized gypsum, P·O 52.5 cement and water-binder ratio have little influence on the pH value of eco-porous concrete. The prepared eco-porous concrete has a low pH value and can meet the needs of plant growth. Among them, tall fescue and bahia grass have the best planting performance in eco-porous concrete.
    黃勁,秦節發,陳超,等.超硫酸鹽水泥植生多孔混凝土性能試驗研究[J].混凝土與水泥制品,2020(10):91-95. HUANG J,QIN J F,CHEN C,et al.Experimental Study on the Performance of Super Sulphated Cement Eco-porous Concrete[J].CHINA CONCRETE AND CEMENT PRODUCTS,2020(10):91-95.
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