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    蘇州混凝土水泥制品研究院有限公司

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    節能與環保

    基于三元骨料體系的LC60輕骨料混凝土性能試驗研究
    基于三元骨料體系的LC60輕骨料混凝土性能試驗研究
    • 王 宏1,2,王丹丹3,朱 平1,2,何長龍1,2,王桂敏1,2,蓋梅香1,2,孫曉光1,2
    2022年第3期
    摘要
    引用本文
    摘 ? 要:研究了鐵尾礦砂、浮石、粉煤灰陶粒對輕骨料混凝土抗壓強度、劈裂抗拉強度、彈性模量和干表觀密度的影響,并利用Design-Expert軟件對配合比進行了優化。結果表明:隨著粉煤灰陶粒相對摻量的增加,輕骨料混凝土的力學性能提高,干表觀密度增大;隨著浮石相對摻量的增加,輕骨料混凝土的力學性能降低,干表觀密度減??;隨著砂率的增大,輕骨料混凝土的干表觀密度增大,且當砂率為40%時,輕骨料混凝土的力學性能達到最佳;Design-Expert軟件優化結果表明,當粉煤灰陶粒與浮石的質量比為3.13、砂率為36%時,可制備出力學性能較優且干表觀密度較低的輕骨料混凝土。 Abstract: The effects of iron tailing sand, pumice and fly ash ceramsite on the compressive strength, splitting tensile strength, elastic modulus and dry apparent density of lightweight aggregate concrete were studied, and the mix proportion was optimized by using Design-Expert software. The results show that the mechanical properties and dry apparent density of lightweight aggregate concrete increase with the increase of the relative content of fly ash ceramsite. With the increase of pumice relative content, the mechanical properties and dry apparent density of lightweight aggregate concrete decrease. With the increase of sand ratio, the dry apparent density of lightweight aggregate concrete increases, and the mechanical properties of lightweight aggregate concrete reach the best when the sand ratio is 40%. The optimization results of Design-Expert software show that when the mass ratio of fly ash ceramsite to pumice is 3.13 and the sand ratio is 36%, the lightweight aggregate concrete with excellent mechanical properties and low dry apparent density can be prepared.
    王宏,王丹丹,朱平,等.基于三元骨料體系的LC60輕骨料混凝土性能試驗研究[J].混凝土與水泥制品,2022(3):96-100 WANG H,WANG D D,ZHU P,et al.Experimental Study on Performance of LC60 Lightweight Aggregate Concrete Based on Ternary Aggregate System[J].China Concrete and Cement Products,2022(3):96-100.
    水稻秸稈對硫氧鎂泡沫輕質保溫材料性能的影響
    水稻秸稈對硫氧鎂泡沫輕質保溫材料性能的影響
    • 姜俊瑋1,張 鑫1,2,劉巧玲1,2,類成邦1,任建國1
    2022年第3期
    摘要
    引用本文
    摘 ? 要:研究了水稻秸稈體積摻量對硫氧鎂泡沫輕質保溫材料性能的影響,測試了摻水稻秸稈硫氧鎂泡沫輕質保溫材料的干縮量、吸水率、導熱系數、抗壓強度、抗折強度,并進行了微觀孔結構試驗。結果表明:隨著水稻秸稈體積摻量的增加,硫氧鎂泡沫輕質保溫材料的干縮量、吸水率、導熱系數和抗壓強度均逐漸降低,抗折強度在一定范圍內有所增加;水稻秸稈的理想體積摻量為15%~45%。 Abstract: The effect of rice straw volume content on the performance of magnesium oxysulfide foam lightweight insulation materials was studied. The dry shrinkage, water absorption, thermal conductivity, compressive strength and flexural strength of the magnesium oxysulfide foam lightweight insulation materials mixed with rice straw were tested, and the microscopic pore structure test was carried out. The results show that with the increase of rice straw volume content, the dry shrinkage, water absorption, thermal conductivity and compressive strength of the magnesium oxysulfide foam lightweight insulation materials gradually decrease, but the flexural strength increases within a certain range. The reasonable volume content of rice straw is 15%~45%.
    姜俊瑋,張鑫,劉巧玲,等.水稻秸稈對硫氧鎂泡沫輕質保溫材料性能的影響[J].混凝土與水泥制品,2022(3):91-95. JIANG J W,ZHANG X,LIU Q L,et al.Effect of Rice Straw on Performance of Magnesium Oxysulfide Foam Lightweight Insulation Materials[J].China Concrete and Cement Products,2022(3):91-95.
    脫硫石膏基超硫酸鹽水泥混凝土強度和抗碳化性能研究
    脫硫石膏基超硫酸鹽水泥混凝土強度和抗碳化性能研究
    • 王 亮1,周 揚2,3,彭澤川2,3,陳魯川1, 孫啟亮1
    2022年第3期
    摘要
    引用本文
    王亮,周揚,彭澤川,等.脫硫石膏基超硫酸鹽水泥混凝土強度和抗碳化性能研究[J].混凝土與水泥制品,2022(3):85-90. WANG Liang, ZHOU Yang, PENG Ze-chuan,et al.Study on the Strength and Carbonation Resistance of Desulfurized Gypsum-based Supersulfate Cement Concrete[J].China Concrete and Cement Products,2022(3):85-90.
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