硫酸盐渍土地区粉煤灰混凝土抗压强度研究_《混凝土与水泥制品》杂志社

头部文案

发布时间：2020-01-06 00:00:00

全国建材科技期刊
全国中文核心期刊
中国科技论文统计源期刊
万方数据-数字化期刊群入网期刊
中国学术期刊（光盘版）全文收录期刊

华东地区优秀科技期刊
江苏省期刊方阵“双效期刊”
中国期刊网全文收录期刊
中国科技期刊数据库全文收录期刊



硫酸盐渍土地区粉煤灰混凝土抗压强度研究

Research on the Compressive Strength of Fly Ash Concrete in the Sulfate-saline Soil Area

2022年第7期

粉煤灰混凝土；硫酸盐渍土；抗压强度；正交试验；BP神经网络模型

Fly ash concrete; Sulfate-saline soil; Compressive strength; Orthogonal test; BP neural network mode

2022年第7期

10.19761/j.1000-4637.2022.07.035.05

青海省科技厅应用基础研究项目（2018-ZJ-749）。

郭佳庆1,2，马艳霞1,2，聂思凡1,2，鲁生斌1,2，白继雄3

1.青海大学土木工程学院，青海西宁 810016；2.青海省建筑节能材料与工程安全重点实验室，青海西宁 810016；3.青海金座商品混凝土有限公司，青海西宁 810000

郭佳庆1,2，马艳霞1,2，聂思凡1,2，鲁生斌1,2，白继雄3

郭佳庆,马艳霞,聂思凡,等.硫酸盐渍土地区粉煤灰混凝土抗压强度研究[J].混凝土与水泥制品,2022(7):35-39.

GUO Jia-qing1，2, MA Yan-xia1，2, NIE Si-fan,et al.Research on the Compressive Strength of Fly Ash Concrete in the Sulfate-saline Soil Area[J].China Concrete and Cement Products,2022(7):35-39.

浏览量:

1000

摘要：为了探究硫酸盐渍土地区粉煤灰混凝土抗压强度随侵蚀时间的变化规律，在某典型硫酸盐渍土地区埋置不同粉煤灰掺量（0、10%、15%、20%）的混凝土试件进行了硫酸盐侵蚀后的抗压强度试验和微观形貌分析，并基于BP神经网络模型预测了试件的抗压强度。试验结果表明：不同粉煤灰掺量试件的抗压强度均随着侵蚀时间的增加先升高后降低；当粉煤灰掺量为10%时，试件的抗压强度最高。SEM分析表明：540 d时大部分试件出现了微裂缝，840 d时试件均发生了劣化，但尚未破坏；当粉煤灰掺量为10%时，试件的劣化不明显；预测结果表明，侵蚀时间是影响掺粉煤灰混凝土试件抗压强度的最主要因素。 Abstract: In order to explore the change rules of the compressive strength of fly ash concrete with erosion time in the sulfate-saline soil area, concrete specimens with different fly ash content(0, 10%, 15%, 20%) were embedded in a typical sulfate-saline soil area, and the compressive strength test and microscopic morphology analysis after sulfate erosion were carried out. The compressive strength of the specimen was predicted based on the BP neural network model. The test results show that the compressive strength of fly ash concrete with different fly ash content increases first and then decreases with the increase of erosion time. At different erosion time nodes, when the fly ash content is 10%, the compressive strength of the specimen is the highest. The SEM results show that at 540 d, most of the specimens appear micro-cracks. At 840 d, all the specimens are deteriorated, but not damaged. When the fly ash content is 10%, the deterioration of the specimens is not obvious. The prediction results show that erosion time is the main factor affecting the service performance of fly ash concrete.

英文名 : Research on the Compressive Strength of Fly Ash Concrete in the Sulfate-saline Soil Area

刊期 : 2022年第7期

关键词 : 粉煤灰混凝土；硫酸盐渍土；抗压强度；正交试验；BP神经网络模型

Key words : Fly ash concrete; Sulfate-saline soil; Compressive strength; Orthogonal test; BP neural network mode

刊期 : 2022年第7期

DOI : 10.19761/j.1000-4637.2022.07.035.05

文章编号 :

基金项目 : 青海省科技厅应用基础研究项目（2018-ZJ-749）。

作者 : 郭佳庆1,2，马艳霞1,2，聂思凡1,2，鲁生斌1,2，白继雄3

单位 : 1.青海大学土木工程学院，青海西宁 810016；2.青海省建筑节能材料与工程安全重点实验室，青海西宁 810016；3.青海金座商品混凝土有限公司，青海西宁 810000

郭佳庆1,2，马艳霞1,2，聂思凡1,2，鲁生斌1,2，白继雄3

郭佳庆,马艳霞,聂思凡,等.硫酸盐渍土地区粉煤灰混凝土抗压强度研究[J].混凝土与水泥制品,2022(7):35-39.

GUO Jia-qing1，2, MA Yan-xia1，2, NIE Si-fan,et al.Research on the Compressive Strength of Fly Ash Concrete in the Sulfate-saline Soil Area[J].China Concrete and Cement Products,2022(7):35-39.





摘要

参数

结论

参考文献

引用本文

Abstract: In order to explore the change rules of the compressive strength of fly ash concrete with erosion time in the sulfate-saline soil area, concrete specimens with different fly ash content(0, 10%, 15%, 20%) were embedded in a typical sulfate-saline soil area, and the compressive strength test and microscopic morphology analysis after sulfate erosion were carried out. The compressive strength of the specimen was predicted based on the BP neural network model. The test results show that the compressive strength of fly ash concrete with different fly ash content increases first and then decreases with the increase of erosion time. At different erosion time nodes, when the fly ash content is 10%, the compressive strength of the specimen is the highest. The SEM results show that at 540 d, most of the specimens appear micro-cracks. At 840 d, all the specimens are deteriorated, but not damaged. When the fly ash content is 10%, the deterioration of the specimens is not obvious. The prediction results show that erosion time is the main factor affecting the service performance of fly ash concrete.

扫二维码用手机看

[1] SABOO N,SHIVHARE S,KORI K,et al.Effect of Flyash and Metakaolin on Pervious Concrete Properties[J].Construction and Building Materials,2019,223:322-328.
[2] KHAN M,ALI M.Improvement in Concrete Behavior with Fly Ash, Silica-fume and Coconut Fibres[J].Construction and Building Materials,2019,203:174-187.
[3] 佟银子,王元纲,黄凯健,等.混凝土复合掺合料火山灰活性快速评定方法研究[J].混凝土与水泥制品,2017(12):79-84.
[4] DEMBOVSKA L,BAJARE D,PUNDIENE I,et al.Effect of Pozzolanic Additives on the Strength Development of High Performance Concrete[J].Procedia Engineering,2017,172:202-210.
[5] 付向红.掺加粉煤灰预防公路工程混凝土碱-骨料反应技术经济分析[J].混凝土,2012(7):140-141,144.
[6] 周建伟,杨文,程宝军,等.超细粉煤灰和偏高岭土对高强混凝土耐热性能的影响[J].硅酸盐通报,2020,39(6):1784-1790.

[7] 袁俊,王学明,魏鹏,等.湿养护不充分条件下矿物掺合料对混凝土抗盐渍土性能的影响[J].硅酸盐通报,2019,38(9):2829-2834,2841.
[8] 杨杨,王亦聪,高凡,等.基于温度-应力试验的粉煤灰混凝土抗裂性能[J].硅酸盐学报,2019,47(8):1101-1108.
[9] 赵庆新,何小军,张津瑞.长期荷载作用对粉煤灰混凝土抗碳化性能的影响[J].硅酸盐学报,2017,45(2):254-259.
[10] 阎培渝,陈志城.不同水胶比的粉煤灰混凝土的自收缩(英文)[J].硅酸盐学报,2014,42(5):585-589.
[11] 刘赞群,邓德华,GEERT D S,等.“混凝土硫酸盐结晶破坏”微观分析(Ⅰ)——水泥净浆[J].硅酸盐学报,2012,40(2):186-193.
[12] 刘赞群,邓德华,GEERT D S,等.“混凝土硫酸盐结晶破坏”微观分析(Ⅱ)—混凝土[J].硅酸盐学报,2012,40(5):631-637.
[13] 范志宏,杨海成,于方.基于暴露试验的大掺量粉煤灰混凝土耐久性试验研究[J].硅酸盐通报,2020,39(8):2622-2627,2649.
[14] 乔宏霞,路承功,李宇,等.宁夏盐渍土地区现场暴露混凝土耐久性损伤评价试验[J].建筑科学与工程学报,2016,33(6):44-52.
[15] 聂宇,杜文汉,王孟,等.不同掺量粉煤灰及再生粗骨料混凝土在硫酸盐侵蚀下的抗压强度研究[J].江西建材,2014(20):4-5.
[16] 郑大轩,李洁文,郭文彪.粉煤灰品质及掺量对混凝土性能影响试验研究[J].当代化工,2021,50(2):262-265.
[17] 中华人民共和国住房和城乡建设部.土工试验方法标准:GB/T 50123—2019[S].北京:中国计划出版社,2019.
[18] 中华人民共和国住房和城乡建设部.盐渍土地区建筑技术规范:GB/T 50942—2014[S].北京:中国计划出版社,2014.
[19] 白宪臣.土木工程材料(第2版)[M].北京:中国建筑工业出版社,2019.
[20] 李云雁,胡传荣.试验设计与数据处理[M].北京:化学工业出版社,2008.
[21] 袁可,王伯昕,王清.基于BP神经网络模型的纤维编织网增强自应力混凝土膨胀量预测方法[J].建筑结构,2020,50(S1): 837-839.
[22] 李地红,高群,夏娴,等.基于BP神经网络的混凝土综合性能预测[J].材料导报,2019,33(S2):317-320.
[23] 陈爽,元艳妃,易金.珊瑚混凝土碳化深度影响因素及其预测模型研究[J].混凝土与水泥制品,2020(11):15-19.

上一个

HCSA抗裂增强混凝土的应用研究

下一个

透水混凝土的细观孔隙结构分析

头部文案

硫酸盐渍土地区粉煤灰混凝土抗压强度研究

相关文件