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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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    纖維水泥及制品

    玄武巖纖維對3D打印再生水泥基材料性能的影響研究
    玄武巖纖維對3D打印再生水泥基材料性能的影響研究
    • 余 盈,李 犇,許亮軍,鄧宇軒,馬瑤娜,謝詠菲
    2021年第12期
    摘要
    引用本文
    摘 ? 要:研究了不同摻量的玄武巖纖維對3D打印再生水泥基材料工作性與力學性能的影響。結果表明:當玄武巖纖維摻量為0.3%~0.5%時,可滿足3D打印所需的流動性、可擠出性、可建造性、凝結時間等要求,且所制備的3D打印再生水泥基材料的抗壓與抗折性能均較好。 Abstract: The effects of different contents of basalt fiber on the workability and mechanical properties of 3D printed recycled cement-based materials were studied. The results show that when the content of basalt fiber is 0.3%~0.5%, it can meet the requirements of fluidity, extrudability, constructability and setting time for 3D printing, and the compressive and flexural properties of the prepared 3D printed recycled cement-based materials are good.
    余盈,李犇,許亮軍,等.玄武巖纖維對3D打印再生水泥基材料性能的影響研究[J].混凝土與水泥制品,2021(12):45-49. YU Y,LI B,XU L J,et al.DENG Yu-xuan,Research on the Influence of Basalt Fiber on the Properties of 3D Printed Recycled Cement-based Materials[J].China Concrete and Cement Products,2021(12):45-49.
    不同因素對超高性能混凝土工作性及力學性能的影響
    不同因素對超高性能混凝土工作性及力學性能的影響
    • 王 冠1,李 煒1,葛文杰1,2,陳玉彬2,3,孫 浩1,陳博洋1,陳亦文1,王碧濤1
    2021年第12期
    摘要
    引用本文
    摘 ? 要:研究了水膠比和礦物摻合料摻量對超高性能混凝土(UHPC)工作性的影響,分析了砂種類對UHPC力學性能的影響。結果表明:增大水膠比、礦渣粉摻量、粉煤灰摻量均可改善UHPC的工作性,而增大硅灰摻量會降低UHPC的工作性;摻入1%的鋼纖維可顯著提高UHPC的力學性能;海砂、江砂取代石英砂會使UHPC的抗壓強度和抗折強度均有不同程度的降低,機制砂取代石英砂會使UHPC的抗壓強度增加、抗折強度降低。 Abstract: The influence of water binder ratio and mineral admixtures content on the working performance of ultra-high performance concrete(UHPC) was studied, and the influence of sand type on the mechanical properties of UHPC was analyzed. The results show that increasing the water binder ratio, slag powder content and fly ash content can improve the working performance of UHPC, but increasing silica fume content can reduce the working performance of UHPC. Adding 1% steel fiber can significantly improve the mechanical properties of UHPC. Replacing quartz sand with sea sand and river sand can reduce the compressive strength and flexural strength of UHPC to varying degrees. Replacing quartz sand with machine-made sand can increase the compressive strength and reduce the flexural strength of UHPC.
    王冠,李煒,葛文杰,等.不同因素對超高性能混凝土工作性及力學性能的影響[J].混凝土與水泥制品,2021(12):50-54. WANG G,LI W,GE W J,et al.Influence of Different Factors on the Workability and Mechanical Properties of Ultra-high Performance Concrete[J].China Concrete and Cement Products,2021(12):50-54.
    礦物摻合料和纖維復摻對混凝土力學性能的影響研究
    礦物摻合料和纖維復摻對混凝土力學性能的影響研究
    • 惠 存,王森林,李 克,陶宏利,邱 軒,邊亞東
    2021年第12期
    摘要
    引用本文
    摘 ? 要:通過正交試驗研究了粉煤灰、硅灰和玄武巖纖維對混凝土力學性能的影響,結合SPSS軟件對試驗數據進行了統計分析,運用極差分析方法得到了各因素對混凝土力學性能影響的主次順序。結果表明:隨著粉煤灰摻量的增加,混凝土各齡期的力學性能呈下降趨勢;隨著硅灰摻量的增加,混凝土各齡期的力學性能呈上升趨勢;隨著玄武巖纖維摻量的增加,混凝土的抗壓強度基本不變,劈裂抗拉強度得到一定提升;當粉煤灰摻量為10%、硅灰摻量為6%、玄武巖纖維摻量為0.45%時,混凝土各齡期的抗壓強度和劈裂抗拉強度均最高。 Abstract: The effects of fly ash, silica fume and basalt fiber on the mechanical properties of concrete were studied by orthogonal test, and the test datas were statistically analyzed by SPSS software, and the primary and secondary order of the influence of various factors on the mechanical properties of concrete was obtained by using the range analysis method. The results show that the mechanical properties of concrete at each age decrease with the increase of fly ash content. With the increase of silica fume content, the mechanical properties of concrete at each age show an upward trend. With the increase of basalt fiber content, the compressive strength of concrete is basically unchanged, and the splitting tensile strength is improved to a certain extent. When the fly ash content is 10%, silica fume content is 6% and basalt fiber content is 0.45%, the compressive strength and splitting tensile strength of concrete at each age are the highest.
    惠存,王森林,李克,等.礦物摻合料和纖維復摻對混凝土力學性能的影響研究[J].混凝土與水泥制品,2021(12):55-58. HUI C,WANG S?L,LI K,et al.Influence of Mineral Admixture and Fiber on the Mechanical Properties?of Concrete[J].China Concrete and Cement Products,2021(12):55-58
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