admixture effects 中文意思是什麼
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The research result indicated that on the condition of the same mortar fluidity, the preventing effects of mineral and superplasticizer compounded on aar are better than that of mineral used singly, the preventing effects of mineral admixture and entraining agent compounded are better than that of mineral admixtures used singly, the preventing effects of mineral and superplasticizer and entraining agent compounded are lower than that of mineral admixture and entraining agent compounded. the research achievement has some guiding sense on the recognition of aar prevention in pumping hpc and the researches of test methods for determining the alkali reactivity of aggregate used in hpc
研究結果表明：在相同砂漿流動度條件下，減水劑與礦物摻合料復合使用對堿?骨料反應的抑制作用大於礦物摻合料單獨使用的抑制作用；引氣劑與礦物摻合料復合使用對堿?骨料反應的抑制作用優于礦物摻合料單獨使用的抑制作用；減水劑、引氣劑與礦物摻合料三元復合使用對堿?骨料反應的抑制作用小於引氣劑與礦物摻合料二元復合使用的抑制作用。 -
In practical uses, the major performances of concrete are associated with the quantities, types and the service conditions of the expansion - admixture. the expansion admixtures of concrete available at present still have many shortcomings, such as the greater quantities required, the non - relevance between developments of concrete strength and durability and expanding speeds of expansion admixture, the evaluation of expanding effects, the def of aft etc. unfortunately, few achievements in these aspects have been obtained all over the world
在實際使用中，膨脹劑類型、摻量及其使用條件對混凝土的主要性能影響很大，現有的膨脹劑存在著實際摻量較大、混凝土強度及耐久性發展與膨脹劑的膨脹速率不協調、膨脹效能如何評價、鈣礬石aft相延遲性反應（ def ）等一系列問題，而目前國內外這方面的研究成果較少。 -
The effects of mineral additive such as fly ash, slag, and dura fiber on concrete expansive property are studied, the results show that these mineral admixture reduce shrinkage in common concrete and also reduce expansive value in shrinkage - compensating concrete
本文討論了粉煤灰、礦渣、杜拉纖維對混凝土膨脹性能的影響，在補償收縮混凝土中，摻合料使其膨脹率減低，杜拉纖維可以提高混凝土的體積穩定性，顯著提高劈拉強度。 -
Some respects of self - compacting high - strength concrete ( schsc ) made of fujian province ' s local material have been studied in this thesis as follows : 1. studies on microstructure of the schsc. three different mixed schsc and one normal high - strength concrete ( nhsc ) were observed by the scanning electron microscope at different sites and different ages of 1 day, 3 days, 7 days, 28 days and 60 days. from the test, the effects due to no vibrating and admixture on the microstructure of schsc were studied
通過四組強度等級相當，分別為普通混凝土、兩組不摻膨脹劑的自密實混凝土（其粉煤灰的摻量不同）和摻有膨脹劑的自密實混凝土，在同一養護齡期的條件下（ 1天、 3天、 7天、 28天和60天） ，分別選擇粗骨料過渡區、細骨料過渡區、水泥石和砂坑作為觀測點，採用sem進行細觀掃描對比實驗，以研究自密實混凝土因免振搗的特性及摻合料對其骨料界面和水泥石結構的影響。 -
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。 -
In the study, a new kind inorganic anchoring material was developed, which consisted of special binder and aggregate, the former is made from clinker, blast furnace slag and compound admixture, and the later is superfine sand. effects of the factors such as clinker / slag, binder / sand, solution / binder and constituent of solution on the strength, set - time and contraction of the matrix made from the anchoring material were studied
上述分析研究得出以下結論：新型無機錨固材料具有早強、快硬、高強特點， 10h .抗壓強度可達26 . 5mpa ， 365天強度可達144 . 0mpa ；初凝時間在40min . 3h .之間，且初終凝時間差在15分鐘以內；在保濕條件下具有微膨脹性，膨脹率在0 . 5 %以內。 -
Abstract : based on composite testing of naphthalene superplasticizer and different retarders as well as retarding water reducer, in which the overall amount of admixture is certain, this paper analyzes the influence of these multicomponent admixtures on flowability of neat cement 、 retarding action and development of strength of colloidal mortar. the result shows that compatibilities of different components are different, and composition effects are also different
文摘:在總摻量一定的情況下，就萘磺酸鹽高效減水劑與不同緩凝組分、緩凝型減水劑等復合后對水泥凈漿流動度、緩凝作用、膠砂強度發展等性能的影響作用進行了試驗分析，結果表明各不同組份復合的相容性不同，復合效應也存在差別。 -
The experiments reveals that : the amount of water vapor transfer is affected by both water content gradient and the value of water contents, when the water content of one end is approximate, the water content gradient increases, then the amount of water vapor transfer increases ; when the water content gradients are approximate, the amounts of water vapor transfer can get great differences if the water contents are different, under this condition when the water content of the dry soil is very little, the amount of water vapor transfer is much greater ; the differences of density hav n ' t great effects on water vapor transfer, but have some effects on the admixture transfer, when the density is smaller, the amount of admixture transfer is greater. the water vapor transfer finishes more quickly and need less time, and the liquid water finishes more slowly and need less time
當一端含水量一定時，增加含水量梯度，則氣態水遷移量增大；當含水量梯度相近時，氣態水遷移量隨含水量不同可能相差很大，這種情況下當較干段含水量特別小時，氣態水遷移量相對較大；密實度的大小對于氣態水遷移的影響並不明顯，但對液態水和氣態水的混合遷移有一定的影響，在相同的實驗時間內，土體密實度較小，則混合遷移量相對較大；氣態水遷移完成速度較快，所需時間較短；液態水遷移完成速度較慢，所需時間較長。 -
The effects of plain concrete expanding admixture on the early shrinkage of high performance concrete
普通混凝土膨脹劑對高性能混凝土早期收縮的影響 -
Their effects on the chemical shrinkage, self - shrinkage, hole structure of cement stone and on the shrinkage of mortar and concrete were also studied thoroughly, and a concrete admixture with high performance of crack - resistant and water - repellent was prepared
通過它們對水泥石的化學收縮和自收縮、孔結構以及對砂漿及混凝土的收縮性能的深入研究配製出了一種性能優良的混凝土抗裂防水外加劑。 -
Effects of shrinkage reducing admixture and polypropylene fiber on early age shrinkage cracking of concrete
減縮劑與聚丙烯纖維對混凝土早期收縮開裂的影響 -
Formula s founded on factors of water - binder and fly ash content is feasible. at the same time ， the effects of fly ash quality ( grade ， fly ash from huaneng fuzhou power plant ), content of chemical admixture etc al, are investigated
本文利用環境掃描電子顯微鏡（ esem ）技術，研究粉煤灰對各齡期（ 3d 、 7d 、 28d 、 60d ）混凝土細觀結構的影響和不同品質粉煤灰對混凝土細觀結構的影響。
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