河北联合大学学报(自然科学版)
河北聯閤大學學報(自然科學版)
하북연합대학학보(자연과학판)
Journal of Hebei United university natural sclence edition
2014年
1期
101-104
,共4页
铁尾矿砂混凝土%抗渗性%轴向压力%强度
鐵尾礦砂混凝土%抗滲性%軸嚮壓力%彊度
철미광사혼응토%항삼성%축향압력%강도
iron tailing sand concrete%impermeability%axial compression%strength
采用渗透系数法研究了轴向压力以及强度对铁尾矿砂混凝土抗渗性的影响。研究表明:铁尾矿砂混凝土在轴向压力作用下,其抗渗性并非一直在劣化,而是在荷载水平0.3~0.4时逐渐提高;当荷载水平为0.4时,出现有压状态下的最大值。当荷载水平超过0.5时,铁尾矿砂混凝土抗渗性能开始快速下降。铁尾矿砂混凝土相对渗透系数与强度之间存在明显的线性关系,其抗渗性能随强度的增大而提高。
採用滲透繫數法研究瞭軸嚮壓力以及彊度對鐵尾礦砂混凝土抗滲性的影響。研究錶明:鐵尾礦砂混凝土在軸嚮壓力作用下,其抗滲性併非一直在劣化,而是在荷載水平0.3~0.4時逐漸提高;噹荷載水平為0.4時,齣現有壓狀態下的最大值。噹荷載水平超過0.5時,鐵尾礦砂混凝土抗滲性能開始快速下降。鐵尾礦砂混凝土相對滲透繫數與彊度之間存在明顯的線性關繫,其抗滲性能隨彊度的增大而提高。
채용삼투계수법연구료축향압력이급강도대철미광사혼응토항삼성적영향。연구표명:철미광사혼응토재축향압력작용하,기항삼성병비일직재열화,이시재하재수평0.3~0.4시축점제고;당하재수평위0.4시,출현유압상태하적최대치。당하재수평초과0.5시,철미광사혼응토항삼성능개시쾌속하강。철미광사혼응토상대삼투계수여강도지간존재명현적선성관계,기항삼성능수강도적증대이제고。
Impermeability of iron tailing sand concrete under axial compression was studied by modified penetration coefficient method .The study results show that the impermeability of iron tailing sand concrete under axial compres -sion become not always bad .When the load level is 0.3~0.4,impermeability increased gradually and impermeabil-ity appeared the highest state under pressure when the load level is 0.4.When the load level is higher than 0.5,the permeation resistance of concrete starts to decline rapidly .Significant linear relationship was found between relative permeability coefficient and strength of iron tailing sand concrete .With the strength increases ,impermeability of iron tailing sand concrete will increase .