low strength cement 中文意思是什麼
low strength cement
解釋
低標號水泥-
Anti penetration of hardened mortar can reach 10 - 7cm / s. adopting sulfate - aluminum cement, phosphorus slag, flying ash, yellow slag and ect raw materials, the optimized mixture program of dmm is a3b3c2 ( cement 480 m2 / kg, phosphorus slag352 m2 / kg, activated agent 3 % ), 28 strength is low, due to cement alkality, resulting in activity of phosphorus slag and flying ash small
採用硫鋁酸鹽水泥，磷渣、粉煤灰、黃砂等原武漢理工大學碩士學位論文料配製抗滲干拌砂漿最優配料方案為: a3b3c2 （水泥比表面積4som ， / kg ，磷渣比表面積352mz / kg ，激發劑3 % ） 。 -
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。 -
With the very low water to cement ratio, rpc has ultra - high strength high ductility and low permeability. in this paper, the compressive strength of rpc can reach to a high point with the number approximately 135mpa. as illustrated from the study results, we can approve some fundamental conclusions : there are big effects on rpc with deferent kinds and properties of raw materials and deferent curing conditions ; stress - strain curve shows the process of destroy with rpc samples ; x - ray diffraction analysis indicates that heat treatment at temperatures 90 accelerate the hydration of rpc sharply, therefore, mechanical and microstructural properties of rpc are highly dependent on heat treatment ; it is believed that rpc materials have excellent resistance to chloride permeability ; during the heat treatment, the shrinkage of rpc developed quickly because of chemical reactions ; the rpc with slag mostly has the advantage of rpc without slag about resistance to solutions corrosion
研究結果表明：通過對rpc各組分摻量變化的研究，可以找到rpc的最優配合比；試件成型后的熱養護制度對rpc的性能影響巨大； rpc的抗壓應力?應變曲線可以反映出試件受破壞時微裂紋的擴展情況，剛纖維的摻入可以大幅改善rpc的韌性； rpc在成型后存在較大的收縮，而其中的化學收縮要遠遠大於乾燥收縮； rpc具有很強的抗氯離子滲透性能，漿體的密實度很高；通過x射線衍射實驗，可以發現rpc的膠凝體中ch晶體已經幾乎不存在，膠凝體主要由c - s - h凝膠和未水化水泥顆粒組成；在抗溶液侵蝕的實驗中，摻礦渣rpc的抗溶液侵蝕性能在絕大多數情況下要好於不摻礦渣試件，酸、堿溶液和浙江工業大學碩士學位論文摘要一些鹽溶液都會對rpc的結構產生侵蝕作用，但是機理各有不同。 -
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。 -
( 3 ) the feasibility of manufacturing dry - mortar is discussed, replacing yellow sand with phosphor slag. ( 4 ) the feasibility of producing dry - mortar is analyzed, replacing sulphur aluminate low alkalinity cement by silicate cement. ( 5 ) study impact of the water quantity of sand on the strength of dry - mortar, and it is concluded that water quantity of sand can influence strength effectively and must be controlled seriously in production
（ 3 ）試驗研究了用磷渣替代黃砂配製干拌砂漿的可行性； （ 4 ）試驗研究了用硫鋁酸鹽低堿水泥替代硅酸鹽水泥配製干拌砂漿的可行性； （ 5 ）試驗研究了砂含水量對干拌砂漿影響，發現砂的含水量對干拌砂漿的強度影響較大，在生產中必須嚴格控制砂的含水量。 -
In the light of its special property being not easy to gain strength, through mechanics researches on different methods to stabilize this kind of low _ liquid _ limit silty soil as subbase material, evaluated both technically and economically, we have got a cement lime stabilization plan to meet the index requirements for non _ side _ limit strength of compression of subbase of class2 road stipulated in the specification ; by means of improving the workmanship, thickening the loose layer of soil, adding soil on covering weave fabric before compaction, such problems can be solved as very poor compaction, loose surface during compaction, roughness and unevenness, coats of layer and shear damages
本文針對黃河沖積而成的低液限粉土其粘粒含量極低、土的不均勻系數很小、膠體活性差的工程特性，通過採用不同方法穩定該類土作底基層材料的力學性能研究，從技術、經濟角度綜合評價，得到滿足規范抗壓強度指標要求的水泥石灰穩定方案。通過對原材料、試驗配合比設計、施工、等方面進行優化，從而顯著減輕了基層的早期及長期縮裂程度，從而提高了路面的耐久性。 -
Cement - composition, specifications and conformity criteria for low early strength blastfurnace cements
水泥.早硬低強度高爐水泥的組分規范和合格標準 -
Cement - part 4 : composition, specifications and conformity criteria for low early strength blastfurnace cements
水泥.第4部分:低早硬強度高爐水泥的組分規范和合格標準 -
Cement - part 4 : composition, specifications and conformity criteria for low early strength blastfurnace cements ; german version en 197 - 4 : 2004
水泥.第4部分:低早硬強度高爐水泥的組分規范和合格 -
The cement concrete pavement, as one of the high - grade pavement structures, has been widely used because of such advantages as high strength, good stability, great durability, high temperature stability, abrasive hardness and low cost of maintenance
水泥混凝土路面作為一種高級路面結構形式，以其強度高、穩定性和耐久性好、耐高溫、耐磨耗以及養護費用少等優點而得到了廣泛的應用。 -
A new low temperature high early strength cement for oil well
一種新型油井水泥低溫早強劑 -
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。 -
The grouting liquid with this stability agent has many advantages such as the good volume stability, low dialysis ratio, high strength of cement rock less dry - shrink and convenient construction etc. when the water - cement ratio is 0. 6 or 0. 8, the 28d strength of cement - rock is 210 % and 179 % of the bentonite cement - rock under standard maintain
該穩定劑配製的水泥漿具有體積穩定性好、不析水、結石強度高、不幹縮、施工方便等優點。如水灰比0 . 6 、 0 . 8時，標準養護條件下28d強度分別較膨潤土水泥漿結石提高100和80以上， 20水中養護28d強度則提高30左右。 -
In this work develop is a new type of macromolecule polymer stability agent mac for the gin grouting method. it has strength of cement rock, low drying shrinkage, good groutability and construction convenience over the bentonite stabilizing agent
本課題針對gin灌漿法研製了新型聚合物mac穩定劑，該穩定劑較膨潤土穩定劑配製的水泥漿具有諸多優點，可成為配製高性能穩定水泥漿液的重要技術措施。 -
Test results show that the carbon fiber with high elastic modulus can not only improve strength performance but also improve toughness of cement mortar, and that the polypropylene fiber with low elastic modulus can only toughen cement mortar
試驗結果表明，高彈性模量的碳纖維對水泥砂漿既能增強，又可顯著增韌；低彈性模量的聚丙烯纖維對水泥砂漿只能增韌。 -
To overcome the problem of low early - strength of prefabricated concrete elements for the third phase of yangshan port, the formula of chlorine resistant portland cement is modified to develop a chlorine resistant portland cement with early strength
摘要為解決洋山港三期工程預制構件早期強度較低的問題，對抗氯鹽硅酸鹽水泥的配方進行改進，開發出早強型抗氯鹽硅酸鹽水泥。 -
However, its cement rock has disadvantages - low strength, drying shrinkage and low durability. to apply the gin grouting method in practice and improve the grouting quality and its durability, it is necessary to develop the high performance grouting material
，為了gin灌漿法的推廣應用和技術提高，切實保證高壩工程中的灌漿質量和可靠耐久性，迫切需要研製出一種高性能穩定性灌漿材料。 -
Mathematical model for structure and compressive strength of hardened class g oilwell cement paste at low temperature
低溫下油井水泥石孔結構與抗壓強度的關系 -
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 -
The good quality 425r silicate cement and 525 silicate cement, which are produced by the use of rotary kiln and up to the national standard gb175 - 92, are particularly suitable for the construction of buildings for civil use, airport, road, port, and dam because of its good early strength, quick condensation, good freeze and abrasive resistance, and low basicity content
我公司出品的425r 525普通硅酸鹽水泥，系採用國濕法旋窯生產工藝，按國家標準gb175 - 92精心組織生產。具有早期強度高凝結硬化快抗凍性好耐磨性好含堿量低等特點，曾獲得福建省優質產品稱號。
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