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闫 林, 何建新, 杨海华.富胶凝砂砾石材料抗压及抗冻性能研究水资源与水工程学报[J].,2019,30(1):197-202
富胶凝砂砾石材料抗压及抗冻性能研究
Research on the anti-compression and anti-freeze properties of the cemented sand and gravel material
  
DOI:10.11705/j.issn.1672-643X.2019.01.30
中文关键词:  富胶凝砂砾石  抗压及抗冻性能  投影回归(PPR)分析法  PPR单因素仿真分析
英文关键词:cemented sand and gravel  anti-compression and anti-freeze  projection pursuit regression analysis  PPR single factor simulation analysis
基金项目:新疆水利水电重点学科基金项目(XJXZ-2003-16)
作者单位
闫 林, 何建新, 杨海华 (新疆农业大学 水利与土木工程学院 新疆 乌鲁木齐 830052) 
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中文摘要:
      采用三因素三水平正交试验、PPR分析法和PPR单因素仿真分析法,探究胶凝材料用量、水灰比及细料含量对富胶凝砂砾石抗压及抗冻性能影响的规律。研究结果表明:胶凝材料用量对富胶凝砂砾石影响程度最大,水灰比次之,细料含量最小。根据投影寻踪仿真单因素分析法得出,随着胶凝材料用量的增加,抗压强度先快速增大随后增幅逐渐平缓;相反,抗冻性能先平缓增大,当胶凝材料用量大于250 kg/m3时增幅变大。细料含量对富胶凝砂砾石抗冻性能与抗压强度的影响规律相似,随着细料含量的增加,抗压及抗冻性能都随之增大,且在细料含量大于27.5%时,增幅逐渐趋于平缓。富胶凝砂砾石抗压及抗冻性能随着水灰比增大而增强,当水灰比大于0.45时出现峰值后下降。
英文摘要:
      The three-factor three-level orthogonal test, projection pursuit regression (PPR) analysis and PPR single factor simulation analysis were used to study the impact of the dosage of cementitious materials, water gel ratio and fine material content on the acanti-compression and anti-freeze properties of the cemented sand and gravel (CSG) materials. The results showed that the dosage of cementitious materials had the greatest influence on the CSG materials, and the influences of the water gel ratio was the second and that of the content was the lowest. According to the single factor analysis method of projection pursuit simulation, with the increase of the dosage of cementitious materials, the compressive strength increased quickly and then the increase was smooth. On the contrary, the anti-freeze increased firstly, and when the dosage of cementitious material was larger than 250 kg/m3, the increase accelerated. The effect of the fine materials content on the anti-compression and anti-freeze of the CSG materials was similar, with the increase of anti-compression and anti-freeze of the fine materials content, and the increase of the content is more moderate than 27.5%. The anti-compression and anti-freeze of the CSG materials increased with the increase of water to cement ratio, and decreased when the water gel ratio was greater than 0.45.
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