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新型墻體材料與施工
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成都平原農村地區生土材料改性試驗研究

作者:黎超,吳耀冬,楊威,宋明健

關鍵字:成都,平原,農村,地區,生土,材料,改性,試驗,

 
(十九冶成都建設有限公司,四川 成都  611730)
    摘要:以成都平原地區的原狀黑土為基材,分別摻加不同比例的水泥、水泥特種混合材料SC-ONE、緩凝劑、減水劑等,形成了不同的改性生土材料。通過試驗研究了不同配比對改性生土材料力學性能的影響,結果表明,當生土占比80%,水泥占比18%,SC-ONE占比2%,摻加0.8%減水劑,水固比為0.17時,改性生土具有較高的抗壓、抗折強度,56 d抗壓強度可達11.3 MPa,抗折強度達到3.2 MPa。試驗表明,水泥、水泥特種混合材料SC-ONE可用于成都平原農村地區生土建筑的改性。
    關鍵詞:生土材料;改性生土;力學性能;黑土
    中圖分類號:TU521.3        文獻標識碼:A        文章編號:1001-702X(2019)09-0148-03
 
Experimental study on modification of raw soil materials in rural areas of Chengdu Plain
LI Chao,WU Yaodong,YANG Wei,SONG Mingjian
(19 Metallurgical Chengdu Construction Co. Ltd.,Chengdu 611730,China)
    Abstract:The original black soil in the Chengdu Plain was used as the base material,and different proportions of cement and cement special mixed materials SC-ONE,retarder and water reducing agent were added to form different modified soil materials. At the same time,the effects of different ratios on the mechanical properties of the modified soil materials were studied by experiments. The results show that when the proportion of raw soil is 80%,the proportion of cement is 18%,the proportion of SC-ONE is 2%,the addition of 0.8% water reducing agent and water-solid ratio is 0.17,the prepared materials has the better compressive strength and flexural strength,the 56 d compressive strength can reach 11.3 MPa and the flexural strength reaches 3.2 MPa. Tests have shown that cement and cement special mixed materials SC-ONE can be used for the modification of raw soil buildings in rural areas of Chengdu Plain.
    Key words:raw soil materials,modified raw soil,mechanical properties,black soil
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