沸石粉掺合料对混凝土基本力学性能的影响
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摘要
试验研究了沸石粉掺合料对混凝土基本力学性能的影响。首先,通过正交试验确定强度等级为C35的沸石粉掺合料混凝土最佳配合比。然后,同时开展沸石粉混凝土与基准混凝土的抗压强度和劈拉强度试验。得到了强度随龄期的发展规律,分析了沸石粉掺合料对基本力学性能的影响。试验研究表明:沸石粉掺合料混凝土的抗压强度与劈拉强度均随龄期的增加而增长;沸石粉掺合料混凝土抗压强度与劈拉强度在各龄期均小于基准混凝土,但随龄期增长而不断接近;沸石粉掺合料混凝土抗压强度与劈拉强度增长速率在前期均低于基准混凝土但后期反超。
The research focused on the effect that zeolite powder had on the basic mechanical properties of concrete.Firstly,the optimum ratio of the zeolite-containing concrete with C35 is determined by orthogonal test.Then,at the same time,the compressive strength and the splitting tensile strength test of zeolite-containing concrete and the reference concrete were carried out.It revealed the law that the development of strength was related to age and analyzed the influence of the mixture of zeolite powder on the basic mechanical properties.The experimental study indicated that the compressive strength and the splitting tensile strength of the zeolite-containing concrete increase as the age increases,while smaller than reference concrete in each age.As the age increases,the gap narrows.Moreover,the growth rate of compressive strength and splitting tensile strength of zeolite-containing concrete was lower than reference concrete in the early stage,but later overtake.
The research focused on the effect that zeolite powder had on the basic mechanical properties of concrete.Firstly,the optimum ratio of the zeolite-containing concrete with C35 is determined by orthogonal test.Then,at the same time,the compressive strength and the splitting tensile strength test of zeolite-containing concrete and the reference concrete were carried out.It revealed the law that the development of strength was related to age and analyzed the influence of the mixture of zeolite powder on the basic mechanical properties.The experimental study indicated that the compressive strength and the splitting tensile strength of the zeolite-containing concrete increase as the age increases,while smaller than reference concrete in each age.As the age increases,the gap narrows.Moreover,the growth rate of compressive strength and splitting tensile strength of zeolite-containing concrete was lower than reference concrete in the early stage,but later overtake.
引文
[1] GIRSKAS G,SKRIPKIUNAS G,SAHMENKO G,et al.Durability of concrete containing synthetic zeolite from aluminum fluoride production waste as a supplementary cementitious material[J].Construction and Building Materials,2016(117):99-106.
[2] MARKIV T,SOBOL K,FRANUS M,et al.Mechanical and durability properties of concretes incorporating natural zeolite[J].Archives of Civil and Mechanical Engineering,2016(16):554-562.
[3] NAGROCKIENE D,GIRSKAS G.Research into the properties of concrete modified with natural zeolite addition[J].Construction and Building Materials,2016(113):964-969.
[4] GIRSKAS G,SKRIPKIUNAS G.The effect of synthetic zeolite on hardened cement paste microstructure and freeze-thaw durability of concrete[J].Construction and Building Materials,2017(142):117-127.
[5]任光月,迟宗立,等.沸石粉和粉煤灰双掺配制高性能混凝土[J].混凝土,1998(2):15-18.
[6] GHAFARI E,FEYS D,KHAYAT K.Feasibility of using natural SCMs in concrete for infrastructure applications[J].Construction and Building Materials,2016(127):724-732.
[7]仲晓林,张晓平,等.掺沸石粉混凝土的配制与应用[J].混凝土2005(7):84-85.
[8]季雷.掺沸石粉配制高性能混凝土试验研究[J].铁道建筑技术2010(4):78-80.
[9]明阳,陈平,等.矿渣、沸石粉复合掺合料在混凝土中的试验研究[J].混凝土与水泥制品2011(12):10-14.
[10]中华人民共和国建设部.普通混凝土力学性能试验方法标准:GB/T 50081—2002[S].北京:中国建筑工业出版社,2003.
[11]BOHAC M,KUBATOVA D,NECAS R,et al.Properties of cement pastes with zeolite during early stage of hydration[J].Procedia Engineering,2016(151):2-9.
[2] MARKIV T,SOBOL K,FRANUS M,et al.Mechanical and durability properties of concretes incorporating natural zeolite[J].Archives of Civil and Mechanical Engineering,2016(16):554-562.
[3] NAGROCKIENE D,GIRSKAS G.Research into the properties of concrete modified with natural zeolite addition[J].Construction and Building Materials,2016(113):964-969.
[4] GIRSKAS G,SKRIPKIUNAS G.The effect of synthetic zeolite on hardened cement paste microstructure and freeze-thaw durability of concrete[J].Construction and Building Materials,2017(142):117-127.
[5]任光月,迟宗立,等.沸石粉和粉煤灰双掺配制高性能混凝土[J].混凝土,1998(2):15-18.
[6] GHAFARI E,FEYS D,KHAYAT K.Feasibility of using natural SCMs in concrete for infrastructure applications[J].Construction and Building Materials,2016(127):724-732.
[7]仲晓林,张晓平,等.掺沸石粉混凝土的配制与应用[J].混凝土2005(7):84-85.
[8]季雷.掺沸石粉配制高性能混凝土试验研究[J].铁道建筑技术2010(4):78-80.
[9]明阳,陈平,等.矿渣、沸石粉复合掺合料在混凝土中的试验研究[J].混凝土与水泥制品2011(12):10-14.
[10]中华人民共和国建设部.普通混凝土力学性能试验方法标准:GB/T 50081—2002[S].北京:中国建筑工业出版社,2003.
[11]BOHAC M,KUBATOVA D,NECAS R,et al.Properties of cement pastes with zeolite during early stage of hydration[J].Procedia Engineering,2016(151):2-9.
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