hardening of concrete 中文意思是什麼
hardening of concrete
解釋
混凝土硬化-
Specially, the axial tensile strength of the interface of the new and old concrete has reached above 2. 40mpa, greatly surpassing the preconcert goal ( > 1. 0mpa ), and its flexural strength also above 5. 80mpa, having surpassed the preconcert target and the standard request ( 4. 50mpa ). ( 2 ) after hardening 4h and 8h the compressive strength of the patched concrete is bigger than 20 mpa, which can satisfy the request of fast patching. ( 3 ) the ych color material, which is mixed into rapid sulfoaluminate cement - concrete patching material, can take better effect and avoid chromatism on the appearance of new - old concrete
特別是新老混凝土界面的軸向抗拉強度已達2 . 40mpa以上，大大超過原定目標（大於1 . 0mpa ） ，其界面抗折強度也在5 . 80mpa以上，也已超過原定指標及規范要求（大於或等於4 . 50mpa ） ; （ 2 ）修補混凝土硬化后4h 、 8h抗壓強度大於20mpa ，能滿足快速修補的要求; （ 3 ）在快硬硫鋁酸鹽水泥混凝土修補材料中摻入自配的ych調色材料，能較好地起到調色作用，避免新老混凝土表面色差。 -
Hydrotropic solution of calcium chloride is the important cryogen for refrigerator and ice making. it is also a good anti - freeze agent and agglomerating agent in construction for concrete hardening and cold hardiness of sand mortar
氯化鈣水溶液是冷凍機用和製冰用的重要致冷劑，基建上能加速混凝土的硬化和增加建築砂漿的耐寒能力，是優良的建築防凍劑凝結劑。 -
Test results show that the steel fiber in concrete have more effectiveness on improving the splitting tensile strength and the flexural strength in the early age than after its hardening ; the flexural modulus of elasticity of sfrc are higher than the plain concrete at different ages while their compressive modulus of elasticity are almost the same. it ' s also shown that, similar to the plain concrete, the early - age loading decreases the strengths of sfrc, but, with the increase of the contents of the steel fiber things are getting better, especially for the splitting tensile strength and the flexural strength
試驗結果表明：與性能穩定之後相比，在混凝土中摻入鋼纖維對它的早期劈裂抗拉強度和抗折強度有尤為顯著的提高作用；對各齡期的受壓彈性模量影響不大，而對提高抗折彈性模量有一定的效果；與素混凝土試件相同，在早期（強度達到28天強度的85前）對鋼纖維混凝土試件施加荷載會對它的各種強度產生一定的不利影響，但是摻入鋼纖維可以減輕這種不利影響，尤其對劈裂抗拉強度和抗折強度作用突出，並且含纖率越高，效果越明顯。 -
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。 -
I. a mtil ( iaxial elastic - plastic hardening - sofling constitutive model of concrete is proposed iii order to offer a nonlinear material model of concrete for space restoring force analysis of reinforced concrete members taking into account the softening behavior of concrete. the concrete material model is incorporated the elastic - plastic hardening fracturing constitutive model of concrete with the plastic - fracturing theory of concrete, modified without defining two loading functiomis, and based on five parameter power function failure criterion proposed by guo zheng - hai etc from tsingliua ( jniversity, or three parameter unified strength theory proposed by yu mao - hong from x ian iiaotong university
1 、將砼彈塑性硬化斷裂本構模型與塑性斷裂理論結合起來，並加以改進，但無需定義兩個加載面，以清華大學過鎮海建議的五參數冪函數或以西安交通大學俞茂宏建議的，參數統一強度理論作為砼的強度破壞準則，建立了砼多軸彈塑性硬化松馳本構模型，能為鋼筋砼構件空間恢復力分析提供砼非線性材料模型，並能反映砼材料的軟化段。 -
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。 -
3. based on the bond test for 33 concrete specimens and gfrp and bending test for 15 beams strengthening with gfrp, surface preparation of concrete, type of epoxy adhesives, thickness of adhesives, hardening time of adhesives, cure condition after strengthening are considered, and the effect on concrete structures strengthening with gfrp causing by construction behavior was analyzed. 4
根據gfrp片材加固混凝土結構在施工中常涉及到的一些相關因素，如混凝土基層表面處理情況、所選用的粘結劑類型、塗抹粘結劑的厚度、加固的方式以及養護狀況，進行了33個混凝土試件與gfrp片材的剪切粘結試驗，並進行了採用gfrp片材加固的15根混凝土梁的抗彎試驗，分析了與施工性能相關的因素對gfrp片材加固混凝土結構效果的影響。 -
Calcium - enriched fly ash debases the numerical value of critical strength of frozen injury and improves the microstructure because of its form effect, activity, tiny aggregate effect and self - hardening property. so it is feasible to make it an important component of minus - temperature concrete
因為增鈣粉煤灰具有形態效應、活性效應、微集料效應和自凝性、自硬性等優勢，它改善了混凝土的微觀結構，降低了負溫混凝土的抗凍臨界強度，所以增鈣粉煤灰可以作為負溫混凝土的摻合料。 -
The electrical resistivity curves of fresh concrete have the same developing tendency. they can all be divided into three stages : dissolving period, competition period and setting and hardening period
新拌混凝土的電阻率曲線具有相同的發展趨勢，都可以劃分為三個階段：溶解階段、競爭階段和凝結硬化階段。 -
This paper also states initially that the powder influence upon the workability of fresh concrete and mechanical property of hardening concrete
不同配比、不同水化齡期的試樣顯著結構表明：高鈦礦渣增強的機理主要是微粉的填充效應和膠凝效應。 -
On the course of hardening of concrete, the improvement of performance mainly lies in the decrease of plasticity cracks and interior cracks of concrete in quantity and in dimension and the enhancement of medium continuity
在混凝土硬化過程中纖維改善了混凝土的內部結構，主要表現在減少了混凝土的塑性裂紋和內部微裂紋的數量和尺寸，提高了混凝土材料介質的連續性，從而改善了混凝土的綜合性能。 -
Steel fiber reinforced concrete ( sfrc ) is a new compound civil engineering material. its properties have been studied deeply in recent years. comparing to the knowledge of the fully - hardening sfrc, we know very little about its properties in the early ages
但是，現在對鋼纖維混凝土力學性能的研究大多集中在混凝土硬化完成之後的力學性能，而對於它在硬化發展過程中的各種力學性能的研究還不多。 -
Products and systems for the protection and repair of concrete structures - test methods - determination of fatigue under dynamic loading - part 2 : after hardening
混凝土構件的防護和維修的產品和系統.試驗方法.動荷載疲勞測定.第2部分:淬火后疲勞測定 -
However, the setting and hardening time of the concrete, the mortar influences the test results obviously
混凝土?水泥砂漿?環氧樹脂砂漿的凝結硬化時間長短對測試結果有比較顯著的影響。 -
In this paper, choosing principle of the materials are discussed and the matching index of the old concrete and the repairing materials are also expounded. the rapid repairing materials are classified as three categories : rapid hardening cement, rapid hardening concrete and rapid repairing agent. the behaviors of the materials have been given deep studies in both lab and engineering
快速修補材料是道路維修中用量最大的材料，本文闡述了快速修補材料的選擇原則和基層混凝土與修補混凝土的相容性指標，將快速修補材料分為：快硬水泥類、快硬混凝土類和快速修補劑三大類，並對這些材料的性能進行試驗研究和工程應用研究。 -
Only when superplasticizer, admixture rf, early - hardening sulphoaluminate cement and aggregate of suitable size are used, high performance repairing concrete can be prepared with high - early strength and high fluidity and good interfacial bond property
必須選用高效減水劑、 rf摻合料、快硬硫鋁酸鹽水泥、合適粒徑的骨料，才能配製出便於施工操作、早期強度較高、新老界面粘結較好的混凝土修補材料。 -
2. a sectional cross - sectional discrete yield - surface model is proposed to found a foundation of theory for the spatial nonlinear analysis of reinforced concrete members. the method is based on the mnultiaxial elastic - plastic hardening - softening constitutive model of concrete, adopted * the yield surface theory, and the substructure technique
2 、把截面離散法建立在砼多軸彈塑性硬化松馳木構模型上，引進屈服而理論，採用了結構技術，提出了分段截面離散的屈服面模型法，為構件的空間非線性分析奠定了理論基礎。
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