止裂試驗 的英文怎麼說
中文拼音 [zhǐlièshìyàn]
止裂試驗
英文
crack arrest test-
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。Cold cracks will be avoided when the width and height of cavity is accurately chosen
文章通過試驗確定了最佳的空腔尺寸，此時可防止冷裂紋的產生。In this thesis, the technological way that prevent the anchorage pile and the concrete of anti - force beam from crazing, and the technological application of ultrasonic determine apparatus to detecting are introduced during engineering of trial pile by inducting prestressed technology to anchorage pile and anti - force frame
論文還介紹了在試驗樁工程中，通過預應力技術引入錨樁及反力梁系統，防止錨樁和反力梁混凝土開裂的技術途徑，和超聲波側壁測定儀檢測技術的應用。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。The results of the bearing bending experiment show that the steel plates can be combined with original beams by the construction gum, which makes the steel plates bearing bending together with original beams. at the same time the gluing steel plates enclose tensed concrete, improve the capability of resisting tension and limit the crack in the concrete
抗彎試驗結果表明：由於加固鋼板通過結構膠與原梁相結合形成組合構件，使鋼板與原梁一起參與受彎作用；同時，所粘鋼板包住受拉混凝土，改善了混凝土的抗拉性能，阻止並限制了混凝土中裂縫的發展。Determining plane - strain crack - arrest fracture toughness, k ia, of ferritic steels
鐵素體鋼平面應變止裂韌度k ia試驗方法Abstract : this paper introduces the some attention matters in workholding ceramic workpiece, the methed in perventing workholder pressing the ceramic workpiece to break and the calculating and testing holding tolerancea
文摘:介紹了陶瓷零件機械加工時，對陶瓷工件施加夾緊力應注意的一些問題，防止壓傷、壓裂陶瓷工件應採取的措施及有關夾緊誤差的理論計算及實驗測試方法。Two different reinforcing methodologies are applied : modification of the overlay characteristics by adding chopped glass fibers to the hot mixture asphalt ( hma ) and reinforcing asphalt overlay with glass grids. theory of fracture mechanics ( fm ) is employed to determine crack growth rates for the suggested anti - cracking overlay systems. asphalt mixture designing tests, three point bending tests and fatigue crack propagation tests were carried out. the critical stress intensity factors kic are determined for plain and reinforced asphalt concrete. depending on the fatigue crack propagation, the crack growth rate is determined for each type of anti - cracking system and the cracking process is also analyzed. one of the significant points in this study is the attempt to give better understanding of the crack propagation for multilayer asphaltic overlay or what are suggested herein to be called composite structure anti - cracking overlay system. the results indicate that the reinforcing materials improve anti - cracking characteristics of the asphalt concrete. composite structure anti - cracking overlay gives a good solution for the reflective cracking phenomenon over old cracked pavements
利用2種不同的方法加筋瀝青罩面:在瀝青混合料中加入短切玻璃纖維改善瀝青混凝土的特性，採用玻璃格珊加筋瀝青混凝土.應用斷裂力學方法分析瀝青路面裂縫擴展機理.採用瀝青混合料設計試驗、三點彎曲試驗和疲勞裂縫擴展試驗，確定加筋瀝青混凝土的臨界應力強度因子kic ，測量每一種瀝青罩面抗裂系統的裂縫擴展速率.本研究的主要特點是提出復合型抗裂罩面系統，分析了多層加筋瀝青罩面裂縫擴展過程，推薦了若干瀝青路面抗裂系統.結果證明，加筋材料可以提高瀝青罩面的抗裂特性，復合型抗裂罩面系統能夠有效地阻止反射裂縫的擴展Then the formu1a of computing the maxima1 top shear stress in designing masonry bui1dings and the method of checking computations of cracks are brought forward in this paper on the basis of the theoretica1 deduce and the data of these tests and experiments. a1so, the practica1 construct methods and the requirements of preventing such cracks in the aspects of the construct rate. the strength and modulus of e1asticity of the masonry bui1dings are put forward
隨后，本文在理論推導和試驗數據的基礎上，提出了在砌體結構設計中計算頂層最大剪應力的公式和是否開裂的驗算方法，並且從施工進度、砌體的強度及彈性模量、構造柱和圈樑的設置等方面提出了防止此類裂縫開展的具體施工方法和要求。From the experiments, the number and width of fracture are obviously decreased, and pasting cfrp laminates play important role in improving rc construction durability ; with anchoring, premature is prevented and the ultimate shear capacity is increased ; taking properly anchoring measure, the ultimate shear capacity of rc t - section beams of initial loads is higher than that of no initial loads ; under non - anchoring case, because the rehabilitation of rc t - section beams with cfrp laminates are destroyed suddenly, the reinforcement effect maybe decrease
試驗結果表明，粘貼碳纖維布顯著減小了鋼筋混凝土t梁的裂縫數量和寬度，抑制了裂縫的開展，對提高普通鋼筋混凝土構件耐久性有重要作用；採用適當的錨固措施可以有效防止構件發生早期破壞，提高構件的極限抗剪能力；對于有錨固的粘貼方式，有預加載的t梁抗剪極限承載力明顯高於無預加載的t梁。試驗還表明，在無錨固的情況下，用碳纖維布作抗剪加固后的t梁破壞較突然，有可能使梁的加固效果出現負效應。Experimental results indicate that the reinforcing frps can be combined with original beams by construction gum, which makes the frps bearing bending together with original beams. at the same time the frps enclose tensed concrete, improve the capability of resisting tension and limit the crack in the concrete
試驗結果表明，加固纖維與原梁相結合形成組合構件，使纖維布與原梁一起參與受彎作用；同時，所粘纖維布包住受拉混凝土，改善了混凝土的抗拉性能，阻止或限值了混凝土中裂縫的發展。分享友人