shrinkage fiber 中文意思是什麼
shrinkage fiber
解釋
收縮纖維-
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 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。 -
The thesis studies the influence of compounding polypropylene fiber and expansion agent to plastic shrinkage of mortar
摘要混凝土的塑性收縮裂縫，是其結構原生缺陷的主要來源，無論是否可見，都會影響混凝土的耐久性。 -
The influence of shrinkage - reducing agent, polypropylene fiber and expansion agent on strength and dry shrinkage of the concrete were systematically tested
系統測試了減縮劑、聚丙烯纖維和膨脹劑對砌塊材料強度和干縮性能的影響規律。 -
Among them, shrinkage - reducing agent and expansion agent were more effective to respectively reduce and compensate early age shrinkage of the concrete, on the contrary, polypropylene fiber was the most effective to restrain medium and long - term shrinkage of the concrete
其中，減縮劑和膨脹劑的減縮與補償收縮的效果主要表現在早期，而聚丙烯纖維的中長期限制效果最好。然後進行空心砌塊的改性試驗研究。 -
The effects of mineral additive such as fly ash, slag, and dura fiber on concrete expansive property are studied, the results show that these mineral admixture reduce shrinkage in common concrete and also reduce expansive value in shrinkage - compensating concrete
本文討論了粉煤灰、礦渣、杜拉纖維對混凝土膨脹性能的影響，在補償收縮混凝土中，摻合料使其膨脹率減低，杜拉纖維可以提高混凝土的體積穩定性，顯著提高劈拉強度。 -
However, the mechanical properties and orientation of fiber changed little. montmorillonite could also improve the thermal stability of microstructure in pet fiber. we suggest that the strong coherence of the interfaces between montmorillonite microparticles and pet restricts the motions of pet molecular chains, developing " the special continuous network structure " and effectively prohibiting the thermal shrinkage of pet fiber
此外，蒙脫土的添加也有效地提高了纖維的熱尺寸穩定性，我們認為這可能是由於片層結構的蒙脫土在pet基體中類似分子網路交聯點，起到了應力支承點的作用，使分子網的連續性和完善程度變好，有效抑制了纖維的熱收縮。 -
Some manufacturers use fiber reinforcement to control plastic shrinkage and thermal cracking
一些生產商使用纖維增強來控制塑性收縮和熱脹開裂。 -
Pet / mmt fiber is a kind of potential tyre cord with high modulus and low thermal shrinkage
如能進一步完善， pet mmt納米復合纖維完全可以製成高模低收縮的輪胎簾子線。 -
Through flat experiment and circle experiment, we research the causes of cracks before hardening of concrete and after. through ingredient experiment, we research the influence of shrinkage from some ingredient ( coal ash, crushed stones and fiber ). in addition, we test some methods of construction to strengthen the anti - crack capacity of r. c. slab in building sites
通過平板試驗和圓環試驗，研究了混凝土在終凝前和終凝后裂縫的各種影響因素；通過摻合料試驗，研究混凝土的一些摻合料（粉煤灰、碎石和纖維）對其收縮變形的影響；另外，還在施工工地進行一些增強樓板抗裂能力的構造措施試驗。 -
The article introduces the properties, yarn structure and application of spandex fiber. elastic direction and elastic degree of the fabric, material selection, structure, fabric width and rate of shrinkage
摘要介紹了氨綸纖維性能和幾種氨綸彈力紗線結構、性能及其應用，並對彈力織物設計中如何確定織物彈力方向和大小、原料選用、組織結構的配置、織物幅寬及經緯向織縮率等關鍵技術進行了闡述。 -
Polypropylene fiber reinforced concrete ( ppfrc ), steel fiber reinforced concrete ( sfrc ) and mixed fiber reinforced concrete used in plate of bridge are studied. the performances of concrete with different fiber content, such as compression strength, tension strength, splitting tensile strength, frost resistance, shrinkage, early shrinkage and chloride ion diffusion coefficient ( dcl - ) are studied
分別研究了改性聚丙烯纖維、鋼纖維和混摻纖維對橋面板用混凝土性能的影響，研究了不同纖維摻量混凝土的抗壓強度、抗折強度、劈裂強度及抗凍性、干縮性能、早期開裂和氯離子擴散系數進行了試驗研究。 -
Lwac is becoming one of the important trends in the development of modern concrete. to solve the problems such as poor workability, large shrinkage value and crack easily of lwac, on the basis of systematic experiments, the author establishes lwac workability evaluation system and advances the testing method of pumping performance of lwac ; the control technology of discrete of lwac is introduced through analyzing structure formation process and establishing the mathematic model ; based on studying the strength source of lwac and the function mechanism of artificial additive, this paper not only confirms some major factors which affect concrete strength but explores the preparation technology route of high strength lwac ; the different effects of several fibers in lwac have been studied, and the fiber is introduced in pumping lwac to improve its crack - proof performance
本文針對輕集料混凝土工作性能差、收縮變形大、易於開裂等問題，根據大量實驗建立了高強輕集料混凝土工作性能的評價體系，提出了高強輕集料混凝土可泵性的測試方法；通過分析輕集料混凝土的結構形成過程，建立了輕集料混凝土拌和物物料運動的數學模型，提出了防止輕集料混凝土分層離析的技術措施；通過對輕集料混凝土強度來源和礦物摻合料的作用機理的深入研究，確定了影響輕集料混凝土強度因素的主次關系，提出了配製高強輕集料混凝土的技術路線；研究了纖維在輕集料混凝土中的增強增韌、減少收縮的作用機理。 -
Finally, the reason that the performances of new construction putty were improved was analyzed from the point of micro by sem, edxa and mip. the result and phenomena were explained in the course of experiment, the mechanism about shrinkage at early age and anti - cracking of polypropylene fiber were discussed elementary
最後，本文藉助掃描電鏡（ sem ）和能譜分析（ edxa ）及汞壓力測孔法（ mip ）等現代測試分析手段，從細觀的角度分析了新型外墻膩子粉性能改善的原因，並初步探討了聚丙烯纖維膩子的塑性收縮及阻裂增韌機理。 -
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 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。 -
By molecular design, high shrinkage polyamide for fiber was synthesized. the chip after spinning and drawing has a shrinkage of 20 ? 40 % in boiling water. the spinning speed is above 4500 m / min
藉由分子設計，篩選共單體，合成高收縮尼龍粒，紡速可達4500米以上，纖維經延伸后，沸水收縮率20 ? 40 % 。將此纖維透過織物設計製成紡織品，具超蓬鬆感或緻密感，並有特殊光澤。 -
By molecular design, high shrinkage polyamide for fiber was synthesized. the chip after spinning and drawing has a shrinkage of 20 40 % in boiling water. the spinning speed is above 4500 m / min
藉由分子設計，篩選共單體，合成高收縮尼龍粒，紡速可達4500米以上，纖維經延伸后，沸水收縮率20 40 % 。將此纖維透過織物設計製成紡織品，具超蓬鬆感或緻密感，並有特殊光澤。 -
Next was an experimental study on modification of stone ballast concrete small hollow block. the influence of polypropylene fiber, expansion agent and both of them on permeability - resistance and both moisture expansion and dry shrinkage of the block were systematically tested. the testing results and theoretical analysis slowed that they all can improve its properties, among which polypropylene fiber can most effectively restrain it ’ s moisture expansion and drying shrinkage ; however, the block doubly blended with polypropylene fiber and expansion agent will be likely to most beneficially improve crack - resistance of wall filled with the block
試驗結果和理論分析表明，單摻聚丙烯纖維、單摻膨脹劑和雙摻聚丙烯纖維與膨脹劑均能改善混凝土空心砌塊的性能，其中，聚丙烯纖維更有利於限制單個砌塊的濕漲干縮，單摻聚丙烯纖維的空心砌塊濕脹干縮的波動性最小;雙摻聚丙烯纖維與膨脹劑對限制石渣砌塊濕脹干縮的效果不理想，但雙摻砌塊將更有利增強于砌塊填充墻的整體抗裂性。 -
Based on the characteristics of silicon whisker, the research on the modification of pa6 by silicon whisker sio2 - jx was made, and the result showed that the tensile strength, impact strength, brinell hardness, and heat resistance increased with the increase of the content of the whisker ; sio2 - jx could replace short glass fiber in the modification of pa6, improving the heat distortion temperature, removing the appearance of glass fiber, reducing shrinkage and the cost
摘要利用晶須矽纖維狀的特性，對其填充于龍玻纖改性進行研究，結果表明，隨晶須用量的增加，材料的拉伸強度、沖擊強度，布氏硬度、耐熱溫度均得到提高；晶須矽可取代短玻纖使用，提高熱變形溫度、消除玻纖外露，降低收縮率及生產成本等。
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