基于氧化物含量的煤矸石基地聚物混凝土强度预测研究  

Study on coal gangue geopolymer concrete compressive strength based on oxide contents

作　　者：张大明 任凤玉[3] 孙芳锦 ZHANG Daming;REN Fengyu;SUN Fangjin(College of Information Science and Engineering,Guilin University of Technology,Guilin 541006,China;Guangxi Key Laboratory of Geotechnical Mechanics and Engineering,College of Civil and Architectural Engineering,Guilin University of Technology,Guilin 541006,China;College of Resources&Civil Engineering,Northeastern University,Shenyang 110819,China)

机构地区：[1]桂林理工大学信息科学与工程学院,广西桂林541006 [2]桂林理工大学土木与建筑工程学院广西岩土力学与工程重点实验室,广西桂林541006 [3]东北大学资源与土木工程学院,辽宁沈阳110819

出　　处：《混凝土》2022年第10期156-160,共5页Concrete

基　　金：国家自然科学基金项目(52178468);国家自然科学基金重点项目(50934006);“十二五”国家科技支撑计划项目(2013BAB02B08);广西自然科学基金项目(2019GXNSFAA245037);广西青年创新人才科研专项(桂科AD19245012);广西建筑新能源与节能重点实验室自主课题(桂科能19-J-21-14);桂林理工大学科研启动基金(GUTQGJJ2019042,GUTQDJJ2019041)。

摘　　要：煤矸石基地质聚合物混凝土是以固体废料煤矸石为基本材料制备的一种环保型材料。混凝土的抗压强度是衡量其性能的重要指标之一。煤矸石中含有不同组分的氧化物,这些氧化物的含量不同会直接影响地质聚合物混凝土的抗压强度。采用支持向量机和布谷鸟算法对煤矸石基地质聚合物混凝土的抗压强度进行预测。以原材料中的氧化物含量作为输入参量,煤矸石基地聚物混凝土的抗压强度作为输出参量,建立煤矸石基地聚物混凝土抗压强度与原材料氧化物含量间的预测模型,预测得到煤矸石基地质聚合物混凝土的抗压强度,分析得到了抗压强度随氧化物(组合)含量的变化规律。研究表明氧化物含量对煤矸石基地聚物混凝土的抗压强度有重要影响。Coal gangue based geopolymer concrete is an environmental friendly material made of coal gangue as a solid waste.Compressive strength is one of the most important index for concretes.Different oxide content in coal gangue will affect compressive strength of the geopolymer concrete directly.Support vector machine and modified Cuckoo algorithm were utilized to predict compressive strength of geopolymer concrete.An orthogonal factor was introduced to modify traditional cuckoo algorithm to update new species and accelerate computation convergence.Then the modified Cuckoo algorithm was employed to optimize the parameters in the support vector machine model.Then compressive strength predicting algorithm of coal gangue based geopolymer concrete was established with oxide content in raw materials as the input and compressive strength as the output of the model.Compressive strength of coal gangue based geopolymer concrete was predicted with different oxide contents in raw materials,and effects of different oxide contents and combination on compressive strength were studied.The results show that the content of oxide has an important effect on the compressive strength of coal gangue based geopolymer concrete.

关 键 词：煤矸石基地质聚合物混凝土 氧化物含量 抗压强度预测 改进布谷鸟算法 

分 类 号：TU528.01[建筑科学—建筑技术科学]