coarse admixture 中文意思是什麼
coarse admixture
解釋
粗混合物-
This paper deals with high fluid concrete in which high strength ceramsite made from shale was used as coarse aggregate. effects of cement content, water - cement ratio, sand percentage, mineral admixture, grading and pretreatment of lightweight aggregate on compressive strength and workability of high fluid structural lightweight aggregate concrete have been studied. the rules of water absorption of high strength lightweight aggregate under different pressure and effects on uniformity of high fluid structural lightweight aggregate concrete have been studied too
本文採用高強頁巖陶粒，摻加高效減水劑配製大流動性結構輕集料混凝土，討論了水泥用量、水灰比、砂率、礦物摻料及輕集料的級配和預濕方式對大流動性結構輕集料混凝土強度和工作性的影響；系統研究了高強陶粒在常壓和壓力下的吸水規律；研究了影響大流動性結構輕集料混凝土勻質性的因素，提出了解決大流動性結構輕集料混凝土分層離析的具體措施。 -
Aminobenzenesulfonic acid super - plasticizer is selected though cement paste test, which be provided with high water - reducing property, low slump loss and good compatibility with cement. according to the request of super high early strength, admixture rf is obtained though tests to compare performances of different accelerators and admixtures. experimental research and analysis are carried out on coarse aggregate ' s grain - size effect and composite aggregate ' s bulk - density to take sensitivity of coarse aggregate into account
通過水泥凈漿試驗比較選擇了減水率高、坍落度損失小、與水泥適應性好的氨基苯磺酸鹽高效減水劑；針對超早強的性能要求，試驗比較了不同早強劑及早強性摻合料的性能表現，研製了早強性能顯著、與高效減水劑和水泥相容性較好的rf摻合料；考慮到修補混凝土對粗集料粒徑的敏感性，對粗集料粒徑效應及混合集料堆積密度進行試驗研究與分析；並對修補混凝土的抗折、抗壓、新老界面粘結強度以及抗凍性等進行了試驗研究。 -
Eight concrete samples of different compound ratio of artificial lightweight aggregate ( coarse aggregate of expanded shale ) and ordinary aggregate, water - reducing admixture, expanding admixture, etc, are compounded firstly, based on the research of main properties such as agitating property, strength, dry surface density and deformation, an optimum compound ratio of the concrete with high strength ( cl40 ), light density ( 1800 ) and slight expand is achieved
首先，採用人造輕骨料（頁巖陶粒）及普通骨料，加入減水劑、膨脹劑等，配製出了八種不同配合比的輕骨料砼與普通砼，並對其和易性、強度、干表觀密度、變形等主要性能進行了試驗研究，得到了強度等級cl40 ，密度等級1800的輕骨料中高強度微膨脹砼最佳配合比。
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