再生骨料制备植生型生态混凝土试验研究
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摘要
验通过选用5～25、10～25 mm两种不同粒径的再生骨料,制备并研究再生骨料取代率为0、25%、50%、75%、100%的生态混凝土的抗压强度变化和植生性能,并从5组草种中筛选出最适宜生态混凝土种植使用的草种。试验结果表明,再生骨料取代率对生态混凝土抗压强度的影响较孔隙率的影响更大,且抗压强度随再生骨料取代率的增加而减小;骨料粒径对生态混凝土的抗压强度影响不大;试验所涉及的5组草种中,高羊茅在生态混凝土中生长速度更快,更易与环境相适应并发挥其作用;再生骨料的粒径大小以及不同取代率对生态混凝土的植生性能影响不大。
In this experiment,the recycled aggregate with two different aggregate sizes of 5～25 mm and 10～25 mm was used to prepare,and study the strength of eco-concrete and plant growth performance when the replacement ratio of recycled aggregate of 0,25%,50%,75%and 100%,then selected the most suitable for eco-concrete planting grass species from the five groups of grass species.In conclusion,the effect of recycled aggregate replacement rate on the compressive strength of eco-concrete is greater than that of porosity,and the strength is decreased with any increment in replacement rate of recycled aggregate.The aggregate size has little effect on the strength of eco-concrete.In the five grass species involved,tall fescue grows faster in eco-concrete,it is easier to adapt to the environment and play its role.The size of the recycled aggregate and the different replacement rate has little effect on the plant growth performance of eco-concrete.
In this experiment,the recycled aggregate with two different aggregate sizes of 5～25 mm and 10～25 mm was used to prepare,and study the strength of eco-concrete and plant growth performance when the replacement ratio of recycled aggregate of 0,25%,50%,75%and 100%,then selected the most suitable for eco-concrete planting grass species from the five groups of grass species.In conclusion,the effect of recycled aggregate replacement rate on the compressive strength of eco-concrete is greater than that of porosity,and the strength is decreased with any increment in replacement rate of recycled aggregate.The aggregate size has little effect on the strength of eco-concrete.In the five grass species involved,tall fescue grows faster in eco-concrete,it is easier to adapt to the environment and play its role.The size of the recycled aggregate and the different replacement rate has little effect on the plant growth performance of eco-concrete.
引文
[1]李秋义,全洪珠,秦原.混凝土再生骨科[M].中国建筑工业出版社,2011(3).
[2]冯乃谦.新实用混凝土大全[M].北京:科学出版社,2005.
[3]肖建庄,李佳彬,兰阳.再生混凝土技术研究最新进展与评述[J].混凝土,2003(10):17-20.
[4]全洪珠,袁传鹏,迟玉锦.再生粗骨料取代率对混凝土各项性能的影响[J].青岛理工大学学报,2011,32(4):12-17.
[5]全洪珠.国外再生混凝土的应用概述及技术标准[J].青岛理工大学学报,2009,30(4):87-92.
[6]王桂玲,王龙志,张海霞,等.植生混凝土的含义、技术指标及研究重点[J].混凝土,2013(1):105-109.
[7]李学军,王明祥.无砂多孔混凝土试验研究[J].西北水资源与水工程,1998,8(4):28-31.
[8]全洪珠.多孔生态混凝土与植物共生性能试验研究[J].硅酸盐通报,2015,34(7):1985-1988.
[9]全洪珠,沈杨,周广兴,等.多孔生态混凝土性能试验研究[J].硅酸盐通报,2017,36(5):1750-1754.
[10]田砾,逄增铭,全洪珠,等.植生型多孔混凝土物理性能及植生适应性研究[J].硅酸盐通报,2016,35(10):3381-3386.
[11]尚建丽,李占印.再生粗集料特征性能试验研究[J].建筑技术,2003,34(1):52-53.
[12]李丽声.再生粗骨料不同取代率对混凝土和易性及强度的影响规律分析[J].混凝土,2007(8):41-43.
[13]胡勇有,胡春明,谢磊,等.植生型生态混凝土孔隙状态对植物生长的影响[J].华南理工大学学报(自然科学版),2006,34(12):5-9.
[2]冯乃谦.新实用混凝土大全[M].北京:科学出版社,2005.
[3]肖建庄,李佳彬,兰阳.再生混凝土技术研究最新进展与评述[J].混凝土,2003(10):17-20.
[4]全洪珠,袁传鹏,迟玉锦.再生粗骨料取代率对混凝土各项性能的影响[J].青岛理工大学学报,2011,32(4):12-17.
[5]全洪珠.国外再生混凝土的应用概述及技术标准[J].青岛理工大学学报,2009,30(4):87-92.
[6]王桂玲,王龙志,张海霞,等.植生混凝土的含义、技术指标及研究重点[J].混凝土,2013(1):105-109.
[7]李学军,王明祥.无砂多孔混凝土试验研究[J].西北水资源与水工程,1998,8(4):28-31.
[8]全洪珠.多孔生态混凝土与植物共生性能试验研究[J].硅酸盐通报,2015,34(7):1985-1988.
[9]全洪珠,沈杨,周广兴,等.多孔生态混凝土性能试验研究[J].硅酸盐通报,2017,36(5):1750-1754.
[10]田砾,逄增铭,全洪珠,等.植生型多孔混凝土物理性能及植生适应性研究[J].硅酸盐通报,2016,35(10):3381-3386.
[11]尚建丽,李占印.再生粗集料特征性能试验研究[J].建筑技术,2003,34(1):52-53.
[12]李丽声.再生粗骨料不同取代率对混凝土和易性及强度的影响规律分析[J].混凝土,2007(8):41-43.
[13]胡勇有,胡春明,谢磊,等.植生型生态混凝土孔隙状态对植物生长的影响[J].华南理工大学学报(自然科学版),2006,34(12):5-9.