国防交通工程与技术
國防交通工程與技術
국방교통공정여기술
TRAFFIC ENGINEERING AND TECHNOLOGY FOR NATIONAL DEFENCE
2012年
1期
30-33
,共4页
搅拌站%混凝土%抗压强度%正交设计%坍落度
攪拌站%混凝土%抗壓彊度%正交設計%坍落度
교반참%혼응토%항압강도%정교설계%담락도
mixing station%concrete%compression strength%orthogonal design%slump
运用正交设计法对影响CFG桩混凝土坍落度和抗压强度的水胶比、砂率、拌合物温度、养护温度以及砂子含水率等控制因素进行了试验研究,采用极差分析和方差分析方法定量分析了这几个主要控制因素对搅拌站现场混凝土拌合物坍落度和抗压强度的影响程度。研究发现,砂子含水率是影响现场混凝土坍落度的主要因素,拌合物的出机温度和环境温度成为CFG桩现场混凝土抗压强度离散性的显著影响因素。
運用正交設計法對影響CFG樁混凝土坍落度和抗壓彊度的水膠比、砂率、拌閤物溫度、養護溫度以及砂子含水率等控製因素進行瞭試驗研究,採用極差分析和方差分析方法定量分析瞭這幾箇主要控製因素對攪拌站現場混凝土拌閤物坍落度和抗壓彊度的影響程度。研究髮現,砂子含水率是影響現場混凝土坍落度的主要因素,拌閤物的齣機溫度和環境溫度成為CFG樁現場混凝土抗壓彊度離散性的顯著影響因素。
운용정교설계법대영향CFG장혼응토담락도화항압강도적수효비、사솔、반합물온도、양호온도이급사자함수솔등공제인소진행료시험연구,채용겁차분석화방차분석방법정량분석료저궤개주요공제인소대교반참현장혼응토반합물담락도화항압강도적영향정도。연구발현,사자함수솔시영향현장혼응토담락도적주요인소,반합물적출궤온도화배경온도성위CFG장현장혼응토항압강도리산성적현저영향인소。
By the orthogonal design method,a test study is made,in the paper,of the ratio of water to binder,sand ratio,the temperature of the mixed materials,the curing temperature,and the sand moisture,all of which are referred to as the control factors affecting the slump and compressive strength of the concrete of CFG piles.These control factors are quantitatively analyzed,by the range analysis and variance analysis methods,to find out to what extent these factors will affect the the slump and compressive strength of the site-mixed concrete.The research shows that sand moisture is the main influential factor that affects the slump of the site-mixed concrete while the temperature of the concrete that has just been turned out and the environmental temperature significantly influence the discreteness of the compressive strength of the concrete of CFG piles.
