ingredient of concrete 中文意思是什麼

ingredient of concrete 解釋
混凝土萬分
  • ingredient : n. 1. （混合物的）組成部分，成分，要素。2. 【化學】拼份，拼料。
  • of : OF ＝Old French 古法語。
  • concrete : adj 1 具體的，有形的；實在的，實際的。2 固結成的，混凝土製的。3 圖案詩歌的（參閱concrete poetry）...
  1. This paper unfolds engineering disposition and theoretical research of negative temperature high performance concrete ( nthpc ) with the damage of many factors motivation, the project background based on qing - zang railway engineering, which is one of four - emphasized engineering during the tenth five - plan. due to the difference of environment of construction and service between nthpc and ordinary concrete, and therefore durability of nthpc is required to higher level. at a first, nthpc must avoid frozen damage at early age and possess anti - freezing property at later period, in order to meet engineering practicable application need, and this are two emphasized and difficult problems, as for nthpc ; by means of mechanism analysis about deicing - agent ingredient and anti - freezing at early period, adopting composite technique routine of mineral addition + anti - freezing element + water - reducer4 - air - entraining + anti - erosion of steel component etc, based on orthogonal experimental approach, fd - 1 composite functional admixtu re was manufactured, which has more property and orientation on qing - zang railway

    負溫混凝土由於和普通混凝土在施工環境及服役環境上存在的差異，因此表現為比普通混凝土更為較高的耐久性要求；負溫混凝土首先要避免早期的凍害以及具備長期抗凍性能，才能夠滿足工程實際應用的要求，這也是負溫混凝土必須解決的兩大技術關鍵；通過對目前常用防凍劑組分作用機理的分析研究及混凝土早期防凍機理探討，採用礦物外加劑+防凍組分+高效減水劑+引氣+阻銹組分功能復合的技術路線，通過正交試驗設計復配了適應青藏鐵路工程要求的專用多功能復合型外加劑fd - 1 ；並在此基礎上配製不同等級負溫高性能混凝土，開展一系列包括硫酸鹽侵蝕、氯離子滲透、抗凍融循環、收縮及耐磨性等耐久性能研究；通過對fd - 1組分和摻量的調整，優化負溫混凝土在施工特性、力學指標和耐久性三個方面的兼容、協調性。
  2. Based on the principles of designs of self - compacting and light aggregate concrete mix, sclc of lc30 - lc50 was developed by using absolute volume method. the main factors affecting the workability of sclc were studied by adopting the modified l - 800 fluidity instrument. the results indicate that the key techniques insuring good workability of sclc are about 30 % first - grade fly ash, about 50 % volume sand ratio, 2 % ~ 6 % dosages of silicon fume and compounded superplasticicizers with viscous ingredient

    採用改進l - 800流動儀，研究了影響lc40自密實輕骨料高性能混凝土工作性的主要因素，結果表明：粉煤灰摻量保持30左右，硅灰摻量為2 6 ，體積砂率為50左右和摻加具有粘塑組分的復合高效減水劑是保證sclc拌合物具有較好工作性的關鍵。
  3. Failure diagnosis of ingredient cntrolling system for concrete mixing plant

    拌合站配料稱重系統原理及故障診斷
  4. 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。
  5. Chemical admixtures have become the indispensable ingredient of modern concrete and gained wide uses in the fields of civil engineering, water conservancy constructions, road and bridge, underground structures, oil well platforms and marine constructions, etc. as the most important kind of chemical admixture, the fabrication and application technology of superplasticizers, to some extend determine the development of production technology of concrete

    混凝土外加劑已經成為現代混凝土材料的基本組份，正在建築工程、水利水電、道路橋梁、地下結構、石油鉆井及海工結構等中獲得越來越廣泛的應用。高效減水劑是混凝土外加劑中最重要的化學外加劑，其生產和應用技術水平很大程度上決定著當今混凝土材料生產技術和施工應用水平。
  6. A new kind of multiple anti - cracking additive composed of multiple organic and inorganic ingredient is developed. lt improves anti - cracking and impermeability property of concrete. and can meet the demands of compressive strength and workability of fresh concrete. at the same time, we offer the integrity manufacture method of anti - cracking hpc. we discussed the relationship among compositions, construction and properties, studied the chemical reactions of phases, made the mechanism of reinforced and crack - resistance of concrete clear, and made concrete designed according to properties and engineering demand

    通過系統深入的理論分析，運用多種現代分析測試手段，從材料各組份間的物理化學作用入手，系統研究材料中各組分與結構性能之間的關系，各相之間化學反應和各相分佈狀態，在已知的化學反應動力學和反應機理的基礎上，探明材料增強和抗裂原理，胡建勤：高性能混凝土抗裂性能及其機理的研究實現材料性能可設計的目的。
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