水的混凝 的英文怎麼說
中文拼音 [shuǐdehúnníng]
水的混凝
英文
coagulation-flocculation jar test of water-
The result of experiment shows that und er the conditions of proper ai r - entraining, concrete with 20 % fly ash has excellent frost - resistance. the frost - resistance of concrete with 55 % fly - ash which is admixed with united expansive agent ( uea ) has been improved greatly. the frost - resistance of sulfate aluminate cement concrete with high volume of fly - ash is dramatically lower than that of silicate cement concrete with the same volume of fly - ash
試驗結果表明:粉煤灰摻量為20的混凝土在適量引氣的條件下具有良好的抗鹽凍性能;粉煤灰摻量為55的混凝土在摻加uea膨脹劑后其抗鹽凍性能有明顯改善;大摻量粉煤灰硫鋁酸鹽水泥混凝土的抗鹽凍性大大低於同摻量的硅酸鹽水泥混凝土。The characters and reasons of easily destroyed asphaltum road was mainly discussed in this paper. then some prevention and cure measures was proposed to improve the quality of road construction
摘要瀝青路面易損病害易發生在水泥混凝土加鋪瀝青混凝土、地勢坑凹多雨水、斜坡、轉彎及十字路口、公交站等路段。合理設計路面結構、加強瀝青路面防水設計、嚴格控制施工質量是瀝青路面易損病害的主要防治措施。Calciferous salt is ideal coagulants which decrease the electric potential. the experiment also showed a new method to treat the coal dressing wastewater by using calcium cinder carbide and pam together
通過對各種降低動電電位的混凝劑的測試,得出鈣鹽是較理想的混凝劑,並確定了電石渣與聚丙烯酰胺聯用治理煤泥水的最新方法。The oxidation of pyrite engenders acid water that is causticity to concrete, bring forward the prevention and cure measure to it
根據水系的發育及巖石的透水性,提出防滲措施;黃鐵礦氧化產生的酸性水對混凝土具有腐蝕性,提出防治措施。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。The elasticity polyurethane joint sealing material is one kind of joint sealing materials for concrete pavement joint which can use at normal temperature. it will solidify by chemic - reaction when commix the polyurethane preploymer, cross link agent, filling, plasticizer and catalyzer
聚氨酯彈性嵌縫料是一種由聚氨酯預聚體主劑與交聯劑、填料、增塑劑以及催化劑混合后通過化學反應交聯固化的常溫施工式水泥混凝土路面用嵌縫材料。Standard specification for multilayer pipe type 2, compression fittings, and compression joints for hydronic heating systems
水硬水泥混凝土和灰漿用乳狀和粉末聚合物改良劑的標準規范The paper is based on the construction of the express - highway between yiyang and changde in hunan province, aiming at enhancing the serviceability of cement concrete pavement, probing into the structural assemblage of the cement concrete pavement, the roadway drainage system, contraction joint with the dowel bar and precaution of bumping at the end of the abutment. it presents some achievements of the research, including more reasonable structural assemblage and roadway drainage system, the method of setting dowelled bar in contraction joint, putting forward the concept of stage - transition from rigid to flexile behind abutment
本文以湖南省益陽至常德高速公路項目為依託,以提高水泥混凝土路面使用性能為目標,就水泥混凝土路面結構組合、路面排水系統、縮縫設置傳力桿、橋頭跳車問題的防治等方面開展研究和工程實踐,取得了豐富的研究成果,如研究採用了更合理的路面結構組合,設置了較完善的路面排水系統,在國內高速公路上率先全面採用縮縫加傳力桿技術,對所有橋涵構造物臺背全部採用剛柔過渡技術處理橋頭跳車問題等。The frequency curve of transverse distribution of the wheel track on divided ways reveals that the frazzled damage of highly channelizing expressway cement concrete pavement largely occurs in the peak range of distribution curve of the wheel track
摘要分車道行駛輪跡橫向分佈頻率曲線顯示,渠化程度較高的高速公路水泥混凝土路面磨損破壞主要集中在行車道輪跡峰值范圍。Technology of old cement concrete pavement broken and stable in motorway ' s heavy repair
高速公路大修工程中舊水泥混凝土路面破碎穩固技術的應用The experimental results show that these models can express precisely the isotherm hydration heat emission curve of portland cement and the autogenous shrinkage process of concrete prepared with portland cement
實測數據檢驗結果表明,這2個模型可以用於模擬硅酸鹽水泥的等溫水化放熱曲線,以及用硅酸鹽水泥配製的混凝土的自收縮發展過程。The temperature rise at the center of a massive concrete wall is calculated by using the adiabatic rise of temperature and heat conduction equations of concrete based on the equivalent time, and considering effects of temperature on the hydration heat reaction ratio and creep characteristics of early - age concrete
摘要基於等效時間的混凝土絕熱溫升、熱傳導方程,考慮溫度對早期混凝土水化熱化學反應速率和徐變特性的影響,計算了大體積混凝土墻中心的溫升。The paper is based on innumerable practical heavy - load road data, deliberate heavy - load standard in detail through theoretical arithmetic, and bring heavy - load standard about cement concrete pavement and asphalt concrete pavement separately ; in the meantime, through a large quantity of cement concrete pavement stress calculation, the paper puts forward relation expression between load on concrete board and stress level under board ; meanwhile, the paper puts forward traffic classification about cement concrete pavement and asphalt concrete pavement ; through bearing board testing on each structure sheaf the paper finds the material modulus gets modified ; through comparing position equivalent rebound modulus to theoretical equivalent rebound modulus, the paper points out limitation of nomograph in course of cement concrete pavement design, whereby, puts forward modifier formulas about theoretical equivalent modulus
本文以大量的重載道路資料為主,從實際出發,結合理論計算,對重載標準進行了詳細的討論,分別給出了水泥混凝土路面與瀝青混凝土路面的重載標準了;同時,通過大量的水泥混凝土板底應力計算,推導出了混凝土面板荷載與板底應力水平的關系式;給出了水泥混凝土路面與瀝青混凝土路面的交通分級;通過對試驗路各結構層進行承載板測試,發現現有材料模量較以前有了明顯的提高;對比現場實測的當量回彈模量與理論當量回彈模量,指出現有水泥路面設計中的諾謨圖不能完全符合現有道路材料,從而提出了對理論模量的修正公式。On renovating procedures of concrete pavement
市區水泥混凝土路面整治方法的探討Application of saf stress absorbing layer in the overlaying on old cement loncrete pavement
應力吸收層在舊水泥混凝土路面加鋪中的應用Lastly, with the fatigue equation, the paper establishes the fatigue stress coefficient which is used in the load stress calculation for lean concrete as undersurface of cement concrete pavement, and the structure coefficient of flexural tensile strength which is used in the flexural stress check for lean concrete as base of asphalt pavement
利用得出的疲勞方程,建立貧混凝土作為水泥混凝土路面下面層荷載應力計算的疲勞應力系數,以及作為瀝青路面基層時,進行層底彎拉應力驗算的彎拉強度結構系數。Abstract : coagulations of different coagulants are researched for the raw water abstracted from xijiang river in guangdong province attempting to optimize the application of coagulant agents and to enhance the coagulation process, so as to reduce the expenses of coagulation operation and to improve the quality of the output water
文摘:通過比較不同混凝劑對西江水的混凝效果,來優化混凝劑的使用方法,達到提高混凝效率、減少混凝成本和提高出水水質的目的。Therefore, choosing an economic and effective coagulation technology to deal with the trace - contaminated water is more and more noticeable
所以選擇一種經濟、高效的處理微污染水的混凝技術方案已經引起人們的高度重視。And if we unite these them, we will get more advantages from them. this experiment made some prime lab research about the unition of the two ~, processes. it contents : 1 ) jar test of optimized coagulation : to determine the quantity of drug
本試驗對強化混凝和粒狀活性炭吸附技術聯用的處理工藝作了初步試驗研究,試驗內容包括: 1 )小試:通過杯罐試驗來確定對于不同濁度的湘江源水的混凝最佳劑投加量。Disposal of arsenic wastewater by coagulation in power plant
電廠含砷廢水的混凝處理研究分享友人