low strength concrete 中文意思是什麼
low strength concrete
解釋
低強度混凝土-
The results of research on the workability of hbc concrete show that hbc concrete, when compared with opc concrete, has excellent compatibility with superplasticizer, in terms of better initial fluidity, less slump loss, definite saturation point and less dosage at saturation point. in addition, good mineral admixture such as i class fly ash can obviously improve the workability of hbc concrete. moreover, hbc concrete exhibits more excellent workability under the condition of low w / c ratio, which indicates hbc is more suitable for making super high strength concrete whose w / c ratio is very low
對高貝利特水泥高性能混凝土工作性能的研究結果表明，高貝利特水泥與高效減水劑具有良好的適應性，表現為初始流動度較大，經時損失較小，具有明顯的飽和點且飽和點摻量較小；此外，優質的礦物摻和料如一級粉煤灰能明顯改善hbc混凝土的工作性能；更為突出的是hbc混凝土在低水膠比的情況下表現出更為優異的工作性，這一特性預示著高貝利特水泥更適宜配製水膠比很低的超高強混凝土。 -
Experimental study on low hydration heat high strength and high performance concrete and its application
低水化熱高強高性能混凝土試驗與應用 -
However, of all the 570 public housing blocks inspected by the housing department by the end of 1985, the average concrete strength was below 15mpa while one block registered a strength level as low as 5. 9 mpa
根據質料顯示，一九八五年尾房署完成勘測的五百七十多憧公屋，全部石屎強度均低於15mpa ，其中一幢更只得5 -
The result shows that the compressive strength of concrete under natural variational low temperatural curing is higher than the compressive strength of concrete under permanent low temperatural curing and the pore porosity under natural variational low temperatural curing is less than the compressive strength of concrete under permanent low temperatural curing ; the compactibility of concrete is good with fa ( < 15 % ) and sf ( < 8 % )
結果當摻合料摻量相同時，自然變低溫（ - 15 ~ 5 ）養護條件下混凝土抗壓強度高於恆低溫（ - 10 ）養護條件下混凝土抗壓強度，孔隙率要低於恆低溫（ - 10 ）養護條件下混凝土的孔隙率;當單摻粉煤灰時摻量低於15 % 、單摻硅灰時摻量低於8 % ，低溫混凝土的密實性較好。 -
The detection of a 11 - layers frame shear wall structure shows that the concrete strength of the seventh partial wall columns and the eighth partial beam and floor plate in that building are very low
摘要對某11層框架剪力墻結構住宅工程結構檢測時，發現第7層部分墻柱和第8層部分梁板混凝土強度嚴重不足。 -
Abstract : because the water - binder ratio of both high strength concrete and high performance concrete are very low, it bring about the following consequences such as : 1, the grade of cement strength would be a negligible symbol 2, the effectiveness of mineral admixture would be considerably improved 3, the high cohesion of the mixture and concrete " s shrinkage and creep would be changed etc. all these consequences should be well deliberated by the construction circles
文摘:高強混凝土和高性能混凝土因其水膠比都很低，給配製與施工帶來如下現象：水泥標號的「標志」作用淡化，礦物摻合料的作用顯著改善，拌合物的高粘聚性、混凝土的收縮和徐變性能的變化等，這些現象都值得施工人員注意。 -
It is high performance concrete of low water - binder ratio. with its own gravity and without any vibration, it can fill up the space automatically. with high adding quantity of fly ash and slag, high quality water reducing agent and other compound admixture is the most important technology of this kind of high performance concrete. scc focus on high workability at the same time on high strength and high durability through choosing the composite of aggregate, additives, content of cementions material, admixture reasonably and the optimum design of mix proportion
本文研究了採用吉林省本地原材料和常規生產工藝配製c40自密實混凝土的製作技術，採用水膠比、粉煤灰摻量、砂率、膠凝材料總量四個因素進行配合比的正交設計，試驗分析了自密實混凝土拌合物的工作性以及硬化后的力學性能、耐久性和生產與施工注意事項，並對其經濟性做出了客觀評價，本次試驗為吉林地區自密實混凝土的推廣應用提供了數據基礎。 -
Because of its high strength, high workability, high volume stability and high anti - permeability, hsc ( high strength concrete ) has been widely used throughout the world as a new generation structure material. but due to its low ductility, seldom has it been used in the protective engineering
高強混凝土具有高強度、高工作度、高體積穩定性、高抗滲性等優良性能，作為新一代建築材料在國際范圍內得到了廣泛應用，但是由於高強混凝土的延性較差，未能在防護工程中得到大量使用。 -
The result of the research indicates that the high performance concrete produced with this type of cement is of higher early and post strength and the electric flux of the concrete is low
研究結果表明，應用該水泥配製的高性能混凝土均具有較高的早期強度和後期強度，混凝土的電通量較低。 -
The sand is lack in the western china, so preparing self - compacting concrete with low and middle strength with super fine mountain sand and artifical sand is necessary
西部地區河砂匱乏，應用特細山砂和機制砂配製中低強度等級的自密實混凝土是西部地區迫切需要開發的混凝土工程技術。 -
Study on high strength low auto - shrinkage concrete with composite aggregate - auto - shrinkage of high strength concrete with composite aggregate
高強低自收縮復合骨料混凝土的研究之二 -
With using once artificial freezing method and natural freezing method test the compressive strength of low - temperature concrete at different age and by testing the loss percentage of water ( content of evaporative water ) of saturated specimen test the pore porosity of low - temperature concrete at different age
方法採用恆低溫一次凍結法和自然變低溫多次凍結法，測定混凝土在不同齡期的強度值，利用可蒸發水含量法測定對應齡期的孔隙率。 -
The curb concrete meet the predefined requirements of low strength, low elastic modulus and semi - pervious
Smpa 。邊墻混凝土達到低強度、低彈性模量、半透水的要求。 -
The poor workability of low - strength concrete compounded by iso new - standard cement
新標準水泥配製低強度混凝土的和易性特點 -
This paper analyses the problem of concrete cracking and leakage, and set up the model of the middle or low - strength steel slag anti - cracking and impermeable concrete ( acic ) on the base of the analysis. the four principles of water permeable resistance character, volume stability character, toughness and anti - chemical corroded character have been put forward for raw materials selection and durability design of acic, acic is designed by the theory of composite material and the theory of fiber - reinforced, and two series of acic, such as fly ash series and steel slag series, have been manufactured by means of mineral admixture, hybrid fiber and chemical admixture. hydrating heat, macro - mechanics quality, durability and microstructure of the acic have been researched
本文對中低標號大體積混凝土滲透開裂問題進行了研究，從混凝土自身結構形成與經濟角度指出大摻量粉煤灰與膨脹劑復合配製大體積混凝土的問題所在，提出採用鋼渣微細礦粉配製中低標號防滲抗裂混凝土的思路，運用復合材料理論設計中低標號防滲抗裂混凝土，提出了低水化熱、抗滲性能、體積穩定性、韌性和抗沖磨性能是中低標號防滲抗裂混凝土材料選擇和耐久性設計的主要原則，採用鋼渣微細粉復合混雜纖維、化學外加劑的技術路線，配製了適合於深水等特殊環境中的大體積中低標號鋼渣系列防滲抗裂混凝土，對其進行水化特性、宏觀物理力學性能、耐久性和微觀結構研究。 -
Low strength concrete
低強度混凝土 -
Permeability test of concrete which surface is treated by reinforcing agent prove that it can improve durability of low strength concrete effectively
因此，混凝土表面的塗刷滲透試驗證明表面增強劑可以有效提高低強混凝土的耐久性。 -
Abstract : by adding into concrete batch with greater proportion of active fine additive and pumping agent, reacted to the compound impact of the two substances, concrete workability, durability and strength could be improved. in addition, pumping - suitability of low strength concrete may be improved as well
文摘:將大摻量活性細摻料和泵送劑加入混凝土拌合物中，兩者的復合作用下，可使混凝土的工作性、耐久性，強度得到改善，並提高低強混凝土的可泵性。 -
Though the application of the middle or low - strength mass concrete has been used widely in the crossing river tunnel and the anchor of bridge, there have been very serious phenomena of buildings cracking and leakage in many old concrete constructions and even recent concrete constructions. so, it is very important to enhance the quality of concrete anti - cracking and impermeable property
目前中低標號大體積混凝土被廣泛應用於實際工程（過江隧道預制沉管、懸索橋錨錠）中，但其突出的滲裂問題至今仍未徹底解決，因此提高混凝土防滲抗裂功能，意義十分重大。 -
The main contents are followed below : ( 1 ) for the aim of knowing the characteristics of main factory building structure frame columns of large - scale thermal power plants, nine high strength concrete frame columns with high axial compression ratio and six slender ordinary strength concrete frame columns with high axial compression ratio were tested under low reversed cyclic horizontal loading for the very first time, and thus the influencing factors of normal section bearing capacity, such as concrete intensity grade, axial compressive ratio, slendemess ratio, the type of stirrups and stirrup ratio, etc, the anti seismic deformation capability of frame columns were acquired
本文主要研究的內容有： （ 1 ）首次針對火電廠主廠房結構框架柱的特點，對9個高軸壓比高強混凝土框架柱和6個高軸壓比普通混凝土框架長柱進行了低周反復水平加載試驗，獲得混凝土等級、軸壓比、長細比、配箍形式及配筋率等對框架柱的抗彎及抗剪承載力、抗震變形能力的影響因素。
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