| 水泥–粉煤灰–煤渣–吹填粉细砂混合料强度试验 |
| |
| 引用本文： | 温亮,阎长虹,张政,许宝田,张顺井,张东萍,周殷康.水泥–粉煤灰–煤渣–吹填粉细砂混合料强度试验[J].煤田地质与勘探,2019,47(1):149. |
| |
| 作者姓名： | 温亮 阎长虹 张政 许宝田 张顺井 张东萍 周殷康 |
| |
| 作者单位： | 南京大学地球科学与工程学院;江苏国信靖江发电有限责任公司 |
| |
| 基金项目： | 教育部博士点基金项目（20130091110020）；江苏科技厅社会发展支撑项目（BE2015675） |
| |
| 摘 要： | 针对大型堆填场基层结构工程，本着就地取材节约成本的原则，利用吹填砂作为骨料，添加粉煤灰、煤渣和水泥，采用正交试验方法，编制正交设计表，配制不同比例的混合料进行无侧限抗压强度试验。采用方差对不同龄期的混合料抗压强度进行分析，并对混合料加固机理进行研究，给出了混合料最佳质量配比，即水泥20%，粉煤灰15%，煤渣10%，此时混合料的强度最大；其水泥掺量对混合料强度起着关键作用，随着龄期的增长粉煤灰与煤渣对混合料强度影响程度逐渐增强，不过煤渣对混合料初期强度影响不及粉煤灰。
|
| 关 键 词： | 水泥 吹填砂 正交试验 无侧限抗压强度 |
| 收稿时间： | 2018-03-17 |
Test on the strength of the backfill fine sand mixture composed of cement-fly ash-cinder |
| |
| Abstract: | By using orthogonal test to analyze the influence of cement content, fly ash content and cinder content, the non-confining compression strength test was carried out for the stability of large-scale landfill base structure and for the saving costs. The strength at different curing ages was analyzed by variance, and the reinforcement mechanism was also studied. The test results showed that the optimal ratio of cement stabilized soil under different factors is 20% of cement, 15% of fly ash, 10% of cinder, and the strength is the largest at this point. And the influence of cement content on the strength of the mixtures is the main factor, followed by the amount of fly ash and the content of cinder, and with the increase of age, the influence degree of fly ash and cinder on the strength of the mixture is gradually enhanced, and the cinder has less effect on the early strength of the compound than the fly ash. |
| |
| Keywords: | |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《煤田地质与勘探》浏览原始摘要信息 |
| 点击此处可从《煤田地质与勘探》下载免费的PDF全文 |
|
