混凝土收縮 的英文怎麼說
中文拼音 [húnníngtǔshōusuō]
混凝土收縮
英文
concrete shrinkage- 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
- 收 : Ⅰ動詞1 (把攤開的或分散的事物聚集、合攏) put away; take in 2 (收取) collect 3 (收割) harvest...
- 縮 : 縮構詞成分。
- 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...
- 收縮 : 1 (由大變小; 由長變短) contract; shrink 2 (緊縮) concentrate one s forces; draw back 3 take u...
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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。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。Incorporating with mineral admixtures could control the tendency of evening shrinkage of hpc, but the effect is not much remarkable. and the expansive agent uea could compensate shrinkage, but different curing conditions have significant effects on the volume stabilization of hpc. it is necessary to enhance the water curing at the young age and try the best to prolong the curing time
本文對高性能混凝土體積穩定性的特點及其補償措施進行了系統的研究,主要包括:指出了水膠比對高性能混凝土體積穩定性的影響;分析了摻礦物外加劑高性能混凝土體積穩定性的特點;研究了聯合摻加礦物外加劑和膨脹劑對高性能混凝土收縮的補償效果;探索了用膨脹型中熱水泥來配製高性能混凝土對收縮的改善。This thesis investigated and researched on non - loaded crack, especially those caused by thermal - shrink, and analyzed the thermal - shrink stress of beam, slab and continuous - wall, found that according data of civil and overseas offered thermal - shrink calculating formula without considering effect of factors, such as the cement quantity, using of aruhuesiru, aggregate size and quantity of sand, which made the result data smaller. in addition, there are not enough construct measure in code
本文對非荷載裂縫,特別是溫度?收縮裂縫進行了調查研究,並對兩端或四周約束的梁、板和底部約束的地下連續墻進行了收縮應力分析,發現國內外有關文獻給出的收縮計算公式沒有考慮泵送商品混凝土的水泥用量、外加劑使用、骨料粒徑和砂用量等因素的影響,計算出的混凝土收縮量往往偏小;另外, 《規范》中針對溫度?收縮裂縫的構造措施不足。Making use of traditional methods of compensating shrinkage, that is, added with appropriate expansion agent, compensating for the shrinkage of super high strength & high performance concrete has been realized
本研究採用傳統的補償收縮方法,在超高強混凝土中摻入合適的膨脹劑后,達到了補償超高強混凝土收縮的目的。In this paper, the rapid repairing method using cement concrete lamina is presented, two key designing parameters are analyzed : the interfacial bonding strength of new and used concrete and the shearing stress in interface
本文闡述了水泥混凝土路面快速薄層修補的方法,研究了修補中兩個重要設計參數:新老混凝土界面抗剪粘結強度和新老混凝土粘結面剪應力,並進行了新老混凝土界面抗剪粘結強度試驗和混凝土收縮試驗。Abstract : the continuous composite arch bridges are introduced in this paper. some research results of the bridges, such as the basic performance, creep and shrinkage of concrete, principle of the controlled completed bridge state, relation between structure and internal force, construction methods and cases, are also reported. the suggestions for consideration in design are given in this paper
文摘:介紹了連續拱梁組合橋在受力性能、混凝土收縮徐變、成橋狀態控制原則、構造與受力關系,以及常用施工方法與工況描述等方面的研究體會,並給出了可供這類橋梁設計參考的意見。When the amount of powder is same, the finer the powder, the less the ratio of linear contraction ; at the same hydration, different fines of particle results in the different linear contraction regulation. in initial hydration, the ratio grows with the fines ; the less fines the fewer ratios. after that linear contraction of hpc gradually gets to the balance
高鈦礦渣的加入明顯降低混凝土的線收縮率,摻量相同時,礦渣細度的越細,高鈦渣混凝土線收縮率越小;相同齡期時,摻不同細度高鈦礦渣混凝土收縮28天內,高鈦礦渣混凝土收縮率與高鈦礦渣的細度幾乎成比例的增長,而後期收縮線比較平,說明後期的收縮基本達到平衡。2. this thesis analyses the curve, then obtains the principles of shrink and creep of concrete filled steel tubes, estimates the creep of concrete filled steel tubes by the test data of plain concrete creep
2 、對測試曲線進行分析,得出鋼管混凝土收縮、徐變規律及特點,用素混凝土徐變試驗資料估算鋼管混凝土徐變。Edge collapse, honeycomb and surface voids in the slipform paving cement concrete and shrinkage of hardening concrete used in highways are studied in this paper, which is a part of western traffic project, frost resistance of cement concrete, supported by traffic ministry of china
本文針對交通部西部交通項目水泥混凝土抗凍融耐久性能研究中高速路面混凝土滑模施工過程中的塌邊和麻面以及硬化混凝土收縮等現象展開研究。Because of the difference of shape character and function between arch dam and gravity dam, the effect of loads, such as seepage pressure and gravity in arch dam, is smaller than that in gravity dam, but, the thermal load and dam contraction are turned into main loads
由於拱壩的體形特點和工作原理與重力壩不同,所以在拱壩中滲透壓力與重力等作用荷載的影響要比在重力壩中小,而溫度荷載及壩體混凝土收縮則上升為主要荷載。Author also stressly calculates plane deformations of skew girder bridge due to the actions of the subordinate phase dead load, temperature changes, shrinkage and creep of concrete and vehicle loads in different places, and thereby analyses the characteristics of plane movement for the skew girder bridge
作者還著重對斜梁橋的二期恆載、混凝土收縮、徐變、溫度變化和不同位置汽車荷載作用下的平面變形進行計算分析,由此分析斜梁橋的爬移特點。The expansive experiment shows steel slag can compensate the concrete shrinkage during a long time and hybrid fiber restrains the concrete shrinkage
鋼渣摻合料對混凝土收縮具有長期補償作用,混雜纖維起到抑制混凝土收縮的作用。The influence of fly - ash on the shringkage - compensated properties of concrete
影響高強輕集料混凝土收縮的若干因素The result of macro - quality experiments show : mineral admixtures markedly slow the hydrating velocity of cement slurry, decrease and delay the hydrating max - temperature, in which steel slag is more effective ; expansive agents compensate concrete shrinkage, enhance the concrete dense degree, strengthen the interfacial layer between fiber and cement matrix and improve the physical mechanics qualities of acic ; minimal admixtures markedly improve the concrete workability property, increase the concrete later intensity & density and the capability of anti - chemical attack and anti - permeability ; hybrid fiber reinforces the toughness of obviously acic by the means of anti - cracking effect of fiber with different sizes and different properties in the corresponding construction levels
實驗結果顯示:鋼渣摻合料能顯著減緩水泥漿體水化速率,降低砂漿的水化溫升並延遲最高溫升時間;補償混凝土收縮,提高混凝土密實度,加強纖維與水泥石的界面粘結,增強混凝土力學性能,但不能明顯改善混凝土韌性。混雜纖維通過纖維的不同尺度與不同性質在相應的結構層次上產生阻裂效應,增韌鋼渣防滲抗裂混凝土;增加混凝土的破壞極限能,極大提高混凝土抗彎曲能力和韌性指數,改善混凝土脆性。Analysis and control of contraction cracks for pumped concrete
混凝土收縮裂縫原因分析與控制The research of crack trend about the fly - ash high - strength concrete
粉煤灰高強混凝土收縮開裂趨勢的研究Study of preparation of green high strength shrinkage compensating concrete with fly ash
高強混凝土收縮及補償措施試驗研究The internal force redistribution in continuous steel - concrete composite girders due to shrinkage of concrete
混凝土收縮引起連續組合梁的內力重分佈計算It is concluded that we can take measures to reduce shrinkage of concrete during casting of beam in wharf construction
在現澆碼頭上橫梁時可採取措施,減小混凝土收縮。分享友人