收縮性土 的英文怎麼說
中文拼音 [shōusuōxìngtǔ]
收縮性土
英文
contractive soil-
Experimental study on autogenous shrinkage of high - strength concrete
粉煤灰對混凝土補償收縮性能的影響The calculation modes of the coefficient of shrinkage and creep of the bulgy core concrete in steel tube are discussed. based on a few reasonable hypotheses and the stress - strain relation of concrete acquired by the " adjusting valid modulus depending on load time " method, a compact formula is reasoned out, which is applied to calculate the equivalent elastic modulus of the bulgy core concrete considering the affection of shrinkage and creep. so, the analysis of the affection on cfst arch bridge by shrinkage and creep can be progressed by pole - girder fem, further more, the analysis precision is quite high
本文還對核心膨脹混凝土特殊的收縮、徐變系數計算模式展開了探討，在合理的假設前提下，採用「齡期調整的有效模量法」得到的混凝土的本構關系，推導出鋼管內核心混凝土在考慮徐變影響后的等效彈性模量計算公式，並以此為基礎採用桿系有限元方法來對鋼管混凝土拱橋進行較高精度的收縮徐變分析。Comparing with the same category overseas jointless bridges, the new type bridge has more reasonable structure, more simple and convenient construction, and better use effect etc. the main work in this paper is described as follows : ( 1 ) this paper introduces phylogeny and reseach survey of the joints bridge inland and abroad, and a new jointless bridge structure ? new type semi - integral abutment bridge is based on these, which characteristic of own structure and setting of primary component are expatiated. ( 2 ) this paper analyses influence of temperature effect, creep, shrinkage and circumambient soil of run - on slab on the new type structure, and analyses the forcing performance of beam, abutment and run - on slab of the new type semi - integral abutment bridge, and constrast to the same category joints bridges
本文主要做了以下工作: （ 1 ）介紹了無縫橋梁在國內外的發展歷史、研究概況，並在此基礎上提出了一種新的無縫橋梁結構形式-新型半整體式無縫橋梁，闡述了它特有的結構形式以及主要構件的設置; （ 2 ）分析了溫度效應、徐變和收縮以及搭板周圍土體對這種新型結構的影響，對新型半整體式無縫橋主梁、橋臺以及搭板進行了受力性能分析，並和同類無縫橋梁進行了對比分析。Experimental investigation on compensative shrinkage polypropylene fiber concrete
聚丙烯纖維補償收縮混凝土性能試驗研究The cyclo - hoop effect which steel tubular has exert to the concrete shows the character of heterogeneous in the arch rib section, the same to the axial direction. the paper verifies the change of the material poisson ration and the concrete grade will make the cyclo - hoop effect obvious alteration, the change of the cyclo - hoop effect and the stress redistribution of the section produced by the shrinking and creeping of the concrete and the expensive concrete on the section
在鋼管混凝土拱肋斷面上，鋼管對內填混凝土的環箍效應具有非均勻性，在拱軸方向上環箍效應也呈現非均勻性。驗證了材料的橫向變形系數、混凝土標號等參數的變化將引起環箍效應的明顯改變；混凝土的收縮、徐變和膨脹混凝土的應用導致鋼管混凝土的環箍效應發生變化並使截面的應力發生重分佈；並總結了其變化的基本規律。Through the experimental research, we think : the technological capacity of fiberglass asphalt macadam if weaker than asphalt macadam, however, if use elasticized capacity to solve blending technological problem. adjust the breed of fiber silk, extend its diameter, its paving capacity is still worth exploring, asphalt - rubber macadam structure lager have good deformed - become capacity and crazed - resistance capacity, small gap rate. good water - resistance capacity, good hot - stability and simple construction technology. therefore. pitch rubber spall is a good cover material which is suitable for the second class or lower whose asphalt pavement has split open because of fatigue. and is the good structural measure of preventing half - rigidity grass - roots unit shrink - rift reflecting. pave a thin layer of pitch rubber spall between asphalt - type pavement layer and half - rigidity basic level, although the cost of building is higher than paving togongbu in the middle, the construction technology, crazing - resistance and water - resistance are better than togongbu, not only could reduce greatly the reflex of half - rigidity grass - roots unit material, long then the use lifespan of pavement, but also it is possible to reduce suitably the thickness of asphalt mixture layer, though the cast of building in the early days becomes more, in the long - term opinion, it have fully important technological and economical significance
通過試驗研究認為：玻璃纖維瀝青碎石的技術性能不如瀝青碎石好，但路用彈性性能較好，如能解決拌和工藝問題，調整纖維絲的品種，增大其直徑，其路用性能仍值得探討，瀝青橡膠碎石結構層具有變形性能和抗裂性能良好，空隙率小，防水性能好，熱穩定性較好，施工工藝簡單的特點，因此，瀝青橡膠碎石是二級及二級以下公路因疲勞而開裂的瀝青路面的良好罩面材料，也是防止半剛性基層收縮裂縫反射的良好結構措施，在瀝青類路面面層和半剛性基層之間夾鋪瀝青橡膠碎石薄層，雖然造價比夾鋪土工布高，但其施工工藝，抗裂性能和防水性能均優于土工布，不僅可以大大減少半剛性基層材料的反射裂縫，延長路面使用壽命，而且可能適當減薄瀝青混合料面層的厚度，雖然初期造價有所增加，從長遠來看，具有十分重要的技術和經濟意義。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。But high strength concrete has many defects itself. mainly foy : with higher strength be much fragility ; the final strength increments are smaller for high volume silica - ash concrete ; because high strength concrete ’ s self - shrinkage is large, so the deformation performance is much severely with the strength increments
而高強混凝土又有其自身缺陷，主要是:強度越高，脆性越大;摻入硅灰量大的高強混凝土，後期增長減小;由於高強混凝土自收縮大，因而變形性能也隨強度等級的提高而變得嚴重。This paper analyzes the influence of sra on the shrinkage - cracking property of hpc by designing five check - up experiments including desiccation - shrinkage, autogeous shrinkage, flat - restraint, anti - chloride ion penetration and ultimate tensile strain
摘要設計了乾燥收縮、自收縮、平板約束、抗氯離子滲透性以及極限拉應變等5種試驗方法來檢驗減縮劑對高性能混凝土收縮開裂性能的影響。The results of experiment on the relationship between tensile strength, shrinkage, self - desiccation shrinkage and flat restraint cracking show that sra ' s physical shrinkage - reducing effect and ea ' s chemical expansion effect greatly enhance the volume stability of concrete and reduce the probability of early - cracking
對減縮劑與膨脹劑抗拉強度、干縮、自乾燥收縮及平板約束開裂的試驗結果表明： sra的物理減縮作用及膨脹劑的化學膨脹作用，大大提高了混凝土早期的體積穩定性，降低了早期開裂的概率。In the design, the construction measures such as application of shrinkage - compensating concrete, arrangement of spacing layer between the foundation rock and the bottom slab, adding outside waterproof layer, flexible connection between outlet pipe with side - wall, integerated concrete placement of pump seat with bottom slab and design of reinforcement with application of advanced calculation theory are used according to the characteristics of lager span, larger volume and complex loading conditions of the understructure
針對下部結構跨度大、體積大、受力復雜的特點，在設計中採取多種措施，包括採用補償收縮混凝土、基巖與底板間設隔離層、增設外防水層、出水管與邊墻採用柔性連接、機座與底板整體澆注、採用先進計算理論指導配筋。According to each ingredients ( water retaining admixture, polymer, inorganic mineral ) " effect to mortar ' s behaviors ( water relentivity, strength, contractility ) in exclusive mortar " s composite addition, the text defines each ingredient ' s quantity scope, then define the mix through cross experiment. we compared the aac exclusive mortar ' s behaviors such as water relentivity, compressive strength, binding strength, shrinkage, flexural strength and others to ordinary mortar ' s ones, it turn out to be that there is much improve in former ' s behaviors such as water relentivity, compressive strength, binding strength, shrinkage, flexural strength etc, it also shows that the aac exclusive mortar can improve the crack in aac brick walling to a certain degree
並根據專用砂漿中復合外加劑的各個組分（保水劑、聚合物、無機礦物等）對砂漿主要性能（保水性、強度、收縮性、抗彎性等）的影響來確定每個組分的摻量范圍，再通過正交實驗確定最佳配合比，然後就普通砂漿與專用砂漿的保水性、抗壓強度和粘結強度、收縮值、抗彎曲性能以及其它性能進行了對比，對比結果表明專用砂漿的保水性、抗壓強度和粘結強度、收縮值、抗彎曲性能以及其它性能較普通砂漿都有了很大的提高，說明加氣混凝土砌塊專用砂漿在一定程度上可以改善加氣混凝土砌塊墻體的開裂情況。Standard test method for linear shrinkage and coefficient of thermal expansion of chemical - resistant mortars, grouts, monolithic surfacings, and polymer concretes
耐化學腐蝕的灰漿薄漿整體面層和聚合物混凝土的熱膨脹系數和線收縮性的標準試驗方法With the prerequisite of meeting requirement of its working performance, the mix design of common grades can be concluded though strength test if we check various property of the said concrete with the certain mix design, such as compressive strength, tensile strength, elastic modulus, reinforcement wrapping strength, leakage resistance, shrink property and charring resistance, and compare them with property of ordinary concrete, we will find that the various dynamic property of self - densifying high performance concrete is very satisfactory and the durability is quite ideal
在滿足自密實高性能混凝土工作性能的前提下，通過強度試驗得出常用強度等級混凝土的配合比，檢測該配合比下的自密實高性能混凝土的抗壓強度、劈裂抗拉強度、彈性模量、鋼筋握裹力性能、抗滲性、收縮性、抗炭化性等性能，以及各種性能與普通混凝土的比較，驗證自密實高性能混凝土硬化后的各方面力學性能是完全能夠符合要求的，並且具有較高的耐久性。Test method for effective shrinkage of epoxy - resin systems used with concrete
混凝土用環氧樹脂有效收縮性的試驗方法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。Vibration viscosity coefficient of fresh concrete with additives and mineral admixtures are tested. the results show that water reducer and air entrainer can reduce vibration viscosity coefficient while shrinkage - reducing agent has very small influence on it. proper quantity of citric acid, sodium glucaonate or carboxymethy cellulose can reduce vibration viscosity coefficient of fresh concrete
通過對選定的引氣劑和減縮劑對硬化混凝土的收縮性能的影響研究發現，引氣劑和減縮劑可以大幅度降低混凝土毛細孔中溶液的表面張力，對降低混凝土收縮具有顯著作用，當二者復摻時，減縮效果更為明顯。How to make the saponification slag profit us ? according to saponification slag is one kind of substandard lime, in this research, i use saponification slag to stabilize granule soil instead of lime. the intensity, rigidity, water stability, anti - scouring, shrinkage index of saponification slag stabilization is the same as the index of lime stabilization
根據皂化渣屬等外石灰的特點，利用皂化渣替代石灰用於皂化渣穩定細粒土、皂化渣粉煤灰穩定細粒土、皂化渣粉煤灰等結構，並對這幾種結構的強度、剛度、水穩定性、抗沖刷能力、收縮性等指標進行了分析，結果顯示這幾種結構性能指標與石灰類結構相當。In this paper, the influences on concrete shrinkage and splitting tensile strength by the varieties and contents of the raw materials, such as cement, sand, fly ash, water - reducer and expansion agents, are studied. the possibility of the prevention of the concrete cracking by proper concrete proportion design is discussed
本文著重研究了水泥、砂、粉煤灰、減水劑、膨脹劑等材料的品種、用量對混凝土收縮性能及混凝土劈裂抗拉強度的影響，探討了通過合理的配合比設計達到減少混凝土收縮、提高混凝土劈裂抗拉強度進而降低混凝土開裂風險的可能性。This paper used the reactive powder concrete ( rpc ) as the inorganic anchoring material, and studied this material ’ s compositions and the materials mechanics properties ( mainly includes compressive strength, shearing strength, elasticity coefficient and poisson ' s ratio ), and also studied the contraction, durability ( including the rpc permeability, chemistry corrosiveness and anti - frozen performance ) and the heat - resistance of rpc
本文採用活性粉末混凝土（ rpc ）為無機錨固材料，並對該材料的配合比，材料力學性能（主要包括抗壓強度，抗剪強度，彈性模量和泊松比）進行研究，還分析了rpc的收縮性、耐久性能（包括rpc的滲透性、化學侵蝕性和抗凍性能）和耐高溫性能。分享友人