細砂混凝土 的英文怎麼說

中文拼音 [xìshāhúnníngtǔ]
細砂混凝土 英文
fine sand concrete
  • 細 : 形容詞1 （條狀物橫剖面小） thin; slender 2 （顆粒小） in small particles; fine 3 （音量小） thin ...
  • 砂 : 名詞（沙子） sand; grit
  • 混 : 混形容詞1. （渾濁） muddy; turbid2. （糊塗; 不明事理） foolish; stupid
  • 凝 : 動詞1. （凝結） congeal; curdle; coagulate 2. （注意力集中） fix
  • 混凝土 : concrete; beton; jetereting混凝土壩 concrete dam; 混凝土板 concrete slab; 混凝土標號 concrete gra...
  1. The expansion agents can only make up the shrinkage to some extent, and the compensation effects would be reduced when the retardener and fly - ash are used. the expansion agents are not panaceas to avoid the shrinkage cracking as expansion can also reduce the concrete soundness. under bad curing condition, the polypropylene fibrillated film fiber can improve concrete ' s anti - crarking property, while the nominal steels have very unobvious effects. to reduce the concrete shrinkage thus avoid the cracking, the former factors must all be taken into account in concrete proportion design to develop sound concrete

    研究結果表明，水泥的品種和用量是影響混凝土收縮值的主要因素之一，當混凝土中水泥用量超過470kg / m ~ 3時，混凝土的收縮值超過400 10 ~ （ - 6 ） ，在約束狀態下存在高開裂風險；採用細砂使混凝土單位用水量顯著提高，收縮值也大幅增加；優質粉煤灰總體上能抑制混凝土的收縮，以超量方式摻入其抑制作用更加明顯，但粉煤灰混凝土早期的粘聚性較差，應注意養護，以免失水產生龜裂；早強減水劑和緩凝減水劑都會使混凝土收縮值增加；膨脹劑只能補償混凝土部分收縮，同時受緩凝劑和粉煤灰的抑制，而且膨脹使混凝土的體積安定性增加了不確定因素，膨脹劑不是解決混凝土收縮裂縫的良方。
  2. In this paper, the effects of fly ash, cement, lime, fine sands, foam agent, w / c ratio and additional agent on foamed concrete were studied by experiments, the best combination ratio of fly ash foamed concrete whose density varies from 551kg / m3 to 650kg / m3 was obtained through orthogonal test design, the foam agent quantity and the fly ash quantity effect the fly ash foamed concrete greatly, so the author selected them as independents to establish duality linear regression equations, the equations were quite ideal through the test of model summary r. moreover, the author also did some experiments about the water resistance of magnesium oxychloride cement fly ash foamed concrete, the outcome showed that phosphoric acid has good effect on water resistance, and its appropriate quantity was found

    本文通過試驗研究了粉煤灰、水泥、石灰、細砂、發泡液、水灰比及外加劑對粉煤灰發泡混凝土性能的影響，採用正交設計試驗方法得出了600級粉煤灰發泡混凝土的最佳配合比，同時發現發泡液和粉煤灰摻量對發泡混凝土的影響最為顯著，因此，以二者為自變量建立了二元線性回歸方程，通過全相關系數的檢驗發現方程較為理想。此外，還對氯氧鎂水泥基粉煤灰發泡混凝土的耐水性進行了相關實驗，發現磷酸有較好的耐水性效果，同時找到了其合適的摻量范圍。
  3. The research is to develop a new material - - - - high performance concrete of hill sand on the basis of practice of high strength concrete of hill sand and knowledge of ultra - fine trass additive by using concrete material in guizhou and mixing fly ash. the research result shows that the flowability, moldability, cohesiveness of high performance concrete of hill sand are significant by comparison with ordinary concrete on mechanical properties, long term properties, and durability

    本研究課題是在已成功研製並實際應用的c60高強山砂混凝土的基礎上，結合對微細（超細）活性摻合料性質的理論認識，充分利用貴州當地的混凝土材料，並摻入微細（超細）活性摻合料，研製一種新型的高性能混凝土，即山砂高性能混凝土。
  4. Cementitious capillary crystalline waterproofing coating ( abbreviated ccwc ) is a new type of cement - based waterproofing materials, which is characterized by its very good adhesive performance and impermeability to water, self - rehabilitating ability, permanent waterproofing effect, good aging resistance and corrosion resistance, simple construction method and harmless to hunman etc. ccwc consists of ordinary portland cement, quartz sand and reactive substances and other supplementary ingredients, whose reactive substance can permeate into the internal part of concrete structures through water and produce insoluble crystals filling capillary pores or crack of the concret through reaction with cement hydrates and unhydrates

    水泥基滲透結晶型防水材料是以硅酸鹽水泥或普通硅酸鹽水泥、石英砂等為基材，摻入活性化學物質而組成的一種新型防水材料。摻入的活性化學物質以水作載體向混凝土內部滲透，與混凝土中未水化的水泥及部分水泥水化產物發生結晶反應，生成不溶於水的結晶體，堵塞毛細孔道，使混凝土緻密、防水。這種防水材料具有粘結力強、抗滲性能好、自愈合能力強、防水效果持久、耐老化、耐腐蝕、易施工、對人類無害等特點。
  5. This product is extensive to used for all kinds of minerals, cement, fire - proof materials, aluminum soil the familiar anticipating, the emery, glass raw materials, mechanism building sand, stone materials, sand metallurgy of slag. it has the higher yield effect than other types, especially used to crush harder and causticity materials such as carborundum, emery, magnesium sand

    Pcl直通沖擊式破碎機制砂機特別適用於製作建築砂石磨料，耐火材料，水泥石英砂鋼砂爐渣粉銅礦石鐵礦石金礦砂混凝土骨料瀝青骨料等多種硬脆物料的細碎與中碎，是高效，節能的碎石制砂設備。
  6. In order to study the effect of sand ratio ( s / a ratio, fine aggregate volume / total aggregate volume ) on the elastic modulus of self - compacting concrete ( scc ), concretes with various s / a ratios were cast and tested

    摘要本研究主要探討混凝土含砂率（ s / a ，細骨材體積/總骨材體積）對流動化混凝土（ scc ）彈性模數的影響。
  7. Specification for mixing and application of concrete with tenuous sand

    特細砂混凝土配製及應用規程
  8. We use astmc1202 - 94 rapid testing method of chloride permeability to testify the cement mortar, in which we add ultra - fined mineral functional material

    採用astmc1202 - 94的快速氯離子滲透法對摻入超細礦物功能材料的水泥砂武漢理工大學碩士論文漿、水泥混凝土的氯離子滲透性進行了測定。
  9. 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。
  10. 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。
  11. In this paper, referring to qingju water power station, temperature control analysis and study has been done : study on the match ratio of the concrete and question of modifying of the special fine sand concrete to improve resisting ability of splitting of concrete ; study on the technology of the highly mixed fly ash to reduce the adiabatic temperature rise of concrete ; in case of the condition of resisting splitting to allow, study on the temperature control measure to strengthen and water the size of building, simplify the operational procedure, accelerate the construction speed, economize the expenses of the project

    溫控問題成為青居水電站設計和施工的關鍵技術問題。 、本文對水工大體積混凝土溫控問題進行了分析和總結，結合青居水電站閘壩工程，開展溫度應力及溫度控制研究:研究混凝土的配合比及特細砂混凝土『改性問題，提高混凝土的抗裂能力;研究高摻粉煤灰技術，降低混凝土的絕熱溫升:在抗裂條件允許的情況下，研究施工過程中溫控措施的簡化，以加大澆築尺寸，簡化施工程序，加快施工進度，節約工程費用。
  12. In this paper, the so preparing self - compacting concrete with low and middle strength using super fine mountain sand artifical sand and phosphorus slag is studied systemically. through the study the influence of the shape, the proportion of the dust and the grade of sand to the workability and the mechanical property of self - compacting concrete, it is found that super fine mountain sand artifical sand are not suit to prepare low and middle strength self - compacting concrete, but when they are combined and the additive and assistant band material are used, c20 - c40 high performance self - compacting concrete is prepared ; the corresponding additive is developed to solve the delamination caused by the low proportion of banding material ; the evaluating system for the workability of low and middle strength self - compacting concrete is built ; the controlling method for production, construction and curing was set up. and the result of the research is applied into several projects

    通過分析特細山砂和機制砂的顆粒形態、粉末含量、顆粒級配等特性對自密實混凝土的工作性能和力學性能的影響，發現特細山砂、機制砂不宜單獨用於配製中低強度等級自密實混凝土，宜將特細山砂和機制砂進行合理復配，並選擇合適的外加劑和礦物摻合料，優化配合比設計，可生產c20 c40中低強度等級自密實高性能混凝土；研製開發出了具有高效減水、保塑、抗離析功能的外加劑，有效解決了中低強度等級自密實混凝土由於膠凝材料用量少而出現的離析、泌水問題；應用正交設計方法，對因素和水平進行合理選擇，確定了生產中低等級自密實混凝土的最優配合比；建立了中低強度等級自密實混凝土的工作性評價體系；提出了生產、施工及養護的質量控制技術方法。
  13. In meso - level, concrete is taken as a type of three - phase composite material comprising mortar matrix, aggregate and bond between matrix and aggregate

    混凝土在細觀上是一種由骨料、砂漿和粘結面組成的非線性材料。
  14. Some conclusions are drawn as following through analysis and research : 1. through rectifying finest sand character and concrete mix ratio test, anti - split capability of structure concrete is strengthen ; 2. heighten ratio of fly ash in finest sand concrete is beneficial to temperature control of huge volume concrete

    本文通過分析研究，得出以下成果: 1 .通過混凝土配合比試驗及特細砂混凝土改性研究，特細砂混凝土強度達到普通混凝土強度，且混凝土28天齡期極限拉應變為1 . 10xl0一4 ，高於普通混凝土29 . 4 % ，具有良好的抗裂性能。
  15. Methods of test for production control of concrete method of test for sand equivalent value of fine aggregates for concrete

    混凝土生產控制的試驗方法.混凝土用細集料砂當量值試驗方法
  16. In the view of the concrete ' s micro construction, it can conclude that the boundary is the weakest. minute crack occurs firstly at the boundary, and then it spread toward the cements, which are produced by thermal stress

    該模型是從混凝土組成的微細觀角度出發，簡化為水泥砂漿包圍骨料的平面問題，微裂紋首先在界面上產生然後向水泥砂漿中延伸。
  17. In this paper, with complete calculation micro - mechanics method, mass concrete was taken as three - phase composites, which consists of mortar matrix, aggregate and bond between matrix and aggregate. with nonlinear finite element method, the simulation of static and dynamic mechanics performance of the uniaxial compress concrete specimen of dongjiang arch dam and simple supported beam specimen of xiao wan arch dam was studied by means of the software of msc. marc. the number of all kinds of mortar matrix was calculated according to grading of aggregate of three graded concrete and walraven function

    本文採用完全細觀計算力學方法，將大體積混凝土在細觀層次上看成是由粗骨料顆粒、硬化水泥砂漿及其二者之間的粘結界面組成的非均質復合材料，採用非線性有限元方法，在對大型商業有限元軟體? msc . marc二次開發的基礎上，對東江拱壩的三級配混凝土軸壓試件、建設中的小灣拱壩三級配混凝土梁試件在靜、動荷載下的力學性能和破壞過程進行了數值模擬。
  18. To significantly improve both strength and durability of repair interfacial layer between old and new concrete, two attempts were firstly put forward in this thesis : ( 1 ) a kind of new modified primer would be produced by introducing shrinkage reducing admixture into cement mortar, which may both reduce the shrinkage of the interfacial layer, and lessen the content of large crystal in the repaired interface layer, accordingly, remarkably increase the van der waals force of interfacial layer

    為大幅度提高新老混凝土修補界面層的強度和耐久性，本文首次提出並實現兩個設想： （ 1 ）以國產減縮劑為外加劑，配製新型改性水泥砂漿界面劑。該界面劑既能減少界面層宏觀干縮裂縫，又不增加大晶體，使界面層形成密實的微細觀結構，顯著提高粘結界面層內晶體間的范德華力。
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