粘結作用 的英文怎麼說
中文拼音 [niánjiēzuòyòng]
粘結作用
英文
cementation-
The results indicate that : 1. the main physical and chemical characteristics vary regularly : with rising of the altitude, there is a transition from silt > sand > clay to sand > silt > clay in the mechanical composition ; the argic horizon emerges below the altitude of 1600 meters ; the content of organic matter is enrichment, the content of organic carbon of epipedon is higher than 20 g / kg, while the content of organic carbon increases with increasing of altitude, and in the altitude of 3500 - 3700meters, the soils under the meadow have the maximum content organic carbon ; the soils appear acid - slightly acid reaction, the ph decreases appreciably and acid strengthen with increasing of altitude ; the soils higher than the altitude of 2500 meters are base unsaturated, indicating the soil leaching is strong, the ph and bs are distinct plus correlated ; the contents of sio2, al2o3, and fe2o3 of the soil body and clay are all relatively stabilization ; in the soil body, the content of sio2 is much high and cao is very little, the total contents of sio2, a12o3 and fe2o3 occupy 92 % of the mineral parts, the sequence of mineral elements is : sio2 > al2o3 > fe2o3 > k2o > mgo > cao > tio2 > mno
研究結果表明: 1太白山南坡土壤的主要理化性質隨海拔高度的上升呈有規律的變化:隨海拔高度上升,機械組成由粉粒砂粒粘粒逐漸過渡到砂粒粉粒粘粒,海拔1600m以下出現粘化層;土壤有機質豐富,表層有機碳含量一般在20g kg以上,有機碳含量隨海拔高度升高而相應增加,海拔3500 3700m的灌叢草甸植被下有機碳含量最高;土壤呈酸性或微酸性,並隨海拔上升, ph值略微降低,酸性增強,海拔2700m以上的土壤多呈鹽基不飽和狀態,表明土壤淋溶作用較強, ph值和鹽基飽和度呈極顯著正相關;土體與粘粒中的sio _ 2 、 al _ 2o _ 3 、 fe _ 2o _ 3含量相對比較穩定,土體中sio _ 2含量較高, cao含量較少, sio _ 2 、 al _ 2o _ 3和fe _ 2o _ 3含量之和約占土壤礦質部分的92 ,礦質元素含量的順序依次為: sio _ 2 al _ 2o _ 3 fe _ 2o _ 3 k _ 2o mgo cao tio _ 2 mno 。They are not widely used on their own as they tend to severely affect coating and glue adhesion.
但由於嚴重地影響塗料和膠料的粘結作用,所以一般不單獨使用。The research overcomes the shortcomings of primers in common use, and breaks through the traditional astriction of absence of chemical bond between new and old concrete. both macrostructure and microstructure as well as bond mechanism was discussed and some further research advice was put forward
本研究克服了以往的界面劑僅能改善界面層宏觀或微細觀結構的缺點,突破了新老混凝土粘結層主要依靠范德華力提供界面粘結力而幾乎不存在化學鍵作用的缺點。The skin mucus showed agglutinating activity against all human a, b and o, rabbit, chick, grass carp and toad erythrocytes tested. rabbit erythrocytes, however, invariably possessed the highest titer among the cells derived from different animals including human. in addition, there is no blood - group specificity toward human erythrocytes
實驗結果表明,文昌魚體表粘液中凝集素對7種動物的血細胞:人abo血細胞、兔血細胞、雞血細胞、草魚血細胞和蟾蜍血細胞均有凝集作用,其中對兔的血細胞凝集效價最高,對人abo血型凝血作用無血型專一性。Propellant binders based on these materials have excellent mechanical properties and good performance.
用這些材料製成的推進粘結劑的工作性能很好,而機械性能則更為突出。Clay coats can be particularly important as inhibitors of later quartz cementation.
粘土包殼作為石英晚期膠結作用的抑制劑可能是特別重要的。It has a high entrapment efficiency of 98. 3 %, particle size distributing within 5 - 7u m, viscid coefficient of 1432 centipoise. antigen was stable after multiple emulsion treated with gastric juice for 0. 5 - 6h. study on distribution in vivo of me revealed that me could stay for a long time in stomach and that antigen concentration in mesentery was increased with time and reached peak at 24h
疫苗復乳的包封率為98 . 3 % ,粒徑主要分佈於2 ~ 10pm之間,集中於5一7pm ,粘度為1432厘泊,體內分佈實驗顯示, 6h胃中的抗原濃度仍很高,腸系膜淋巴結中的放射量24h最高,與胃液作用0 . 5 ~ 6小時復乳中的抗原不受影響,口服免疫小鼠后明顯提高了rhp疫苗的免疫應答水平。The sodium silicate makes the cork stick to the mold surface and also helps to withstand the charring action of the molten lead alloy.
硅酸鈉能使軟木粉粘結在模具表面,而且還有助於軟木粉耐受熔融鉛合金的碳化作用。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 main results are following : ( 1 ) the variation of clay / silt ratio can indicate the secondary clay action of dust depositions ; the variations of magnetic susceptibility and total fe content are inferred to be records of the changeable intensity of bio - pedogenesis ; the variations of sr content and rb / sr ratio can indicate bio - pedogenesis, dissolving and leaching action ; the content of total organic carbon ( toc ) can reflect variation of climate and vegetation during soil formation, it indicates the intensity of weathering and bio - pedogenesis ; the content variation of caco3 can show the intensity of dissolving - leaching action and secondary deposit, which was noted as pseudomycilia in pores and fissures in the sediment, so it can indicate the intensity bio - pedogenesis quite well. these proxy indexes also reflect obvious regional difference of pedogenic environment and the intensity bio - pedogenesis ; namely, secondary clay action, dissolving - leaching action and bio - pedogenesis are all much stronger in south than that in north
實驗結果表明:粘粒粉沙比值能很好地指示粉塵堆積物的次生粘化作用;磁化率和全鐵很好地指示生物風化成壤作用; sr和rb sr比值能很好的指示生物風化成壤作用和淋溶作用;總有機碳( toc )含量的高低,在一定程度上反應了土壤發育過程中氣候和植被狀況的變化,指示著成壤過程中腐殖質化的程度; caco3含量的變化,可以反映了黃土古土壤形成時的風化成壤作用的強弱程度,指示成壤過程中的淋溶作用和次生碳酸鹽化作用;並且各指標所指示的成壤環境和成壤強度存在明顯的區域差異,即渭河流域土壤的生物風化成壤作用、次生粘化作用和淋溶作用均表現出南部強于北部。On the basis of analysis on the pairwise action of cement paste, nanometer silica fume and clay, the paper proposes the reinforcement mechanism of the cemented soil stabilized with nanometer silica fume. the reinforcement mechanism includes cementation action of cement hydrate, ionic exchange and quadrate reaction of clay particle, pozzolanic effect, filling effect and cementation action of nanometer silica fume
在研究水泥漿?納米硅粉、納米硅粉?粘性土、水泥漿?粘性土相互作用的基礎上,將納米硅粉水泥土的固化機理總結為:水泥水化物的膠結作用、粘土顆粒中的離子交換效應和「二次反應」 、納米硅粉的火山灰效應、納米硅粉的填充效應、納米硅粉的膠結作用。Based on testing results and soil theory, the modified mechanism of the nanometer silica fume in the clay is proposed : water molecule adsorption action, cementation action and filling action. combining the sem tests, the microstructure features of the cemented soil of nanometer silica fume are concluded
設計了三組室內試驗,分別探討了納米硅粉對粘性土物理力學性能的影響;結合試驗結果和土質學基本理論,提出從水分子吸附作用、膠結作用、填充作用三個方面探討納米硅粉與粘性土之間的作用機理。Building construction. sealants. determination of adhesion cohesion properties at variable temperatures
建築結構.密封料.在可變溫度下的粘附作用粘聚性能的測定During diagenetic process, the main factor destroying porosity is function of pressure and cementation. secondary porosity formem formed by unsteady mineral is beneficial to formation ' s development
成巖作用中,壓實作用、膠結作用、自生粘土礦物的沉澱是破壞孔隙的主要因素;不穩定礦物溶蝕形成的次生孔隙有利於儲層的發育。Abstract : yanchang series is a typical low permeability reservoir, and its favourable sandstone reservoir is delta facies. heavy compaction, cementation and heterogeneity exist in it. according to the analysis of the main control factors of forming the secondary pore, it is held that the secondary pore in longdong area is controlled by both favorable facies belt and abnormal formation pressure. it is also held that the formation of the abnormal formation pressure is due to the dewatering of the clay mineral during diagenesis because the dewatering time is identical with the decarboxylation time of organism. organic acid and co2 are driven to adjacent favorable reservoirs under the abnormal formation pressure, and a lot of secondary pore is produced in the runners. from the present exploration result, it is useful to predicting the development of secondary pore to study the distribution of abnormal formation pressure
文摘:陜甘寧盆地三疊系延長統是國內外典型的低滲特低滲油田,儲集層主要為三角洲砂體,壓實作用和膠結作用強烈,儲層非均質性非常嚴重,因此預測次生孔隙發育帶是尋找油氣聚集帶的關鍵.通過對陜甘寧盆地隴東地區延長統次生孔隙形成的主控因素分析,認為陜甘寧盆地延長統次生孔隙的形成除了受沉積有利相帶控制外,還與地層異常壓力的作用密切相關.研究認為隴東地區異常壓力的形成機理主要由於成巖過程中粘土礦物脫水作用.粘土礦物大量脫水時間正好與有機質脫羧期相一致,從而在異常壓力作用下將生油巖中的大量有機酸及co2帶到與之相鄰的儲集層中,並沿著有利儲集相帶運移,在酸性水經過的地方形成大量的次生孔隙,為後期油氣運聚提供有利通道及宿住空間,從現今的勘探結果來看,通過研究地層異常壓力縱橫向分佈特徵,並結合有利相帶研究預測次生孔隙育良帶是行之有效的方法Yanchang series is a typical low permeability reservoir, and its favourable sandstone reservoir is delta facies. heavy compaction, cementation and heterogeneity exist in it. according to the analysis of the main control factors of forming the secondary pore, it is held that the secondary pore in longdong area is controlled by both favorable facies belt and abnormal formation pressure. it is also held that the formation of the abnormal formation pressure is due to the dewatering of the clay mineral during diagenesis because the dewatering time is identical with the decarboxylation time of organism. organic acid and co2 are driven to adjacent favorable reservoirs under the abnormal formation pressure, and a lot of secondary pore is produced in the runners. from the present exploration result, it is useful to predicting the development of secondary pore to study the distribution of abnormal formation pressure
陜甘寧盆地三疊系延長統是國內外典型的低滲特低滲油田,儲集層主要為三角洲砂體,壓實作用和膠結作用強烈,儲層非均質性非常嚴重,因此預測次生孔隙發育帶是尋找油氣聚集帶的關鍵.通過對陜甘寧盆地隴東地區延長統次生孔隙形成的主控因素分析,認為陜甘寧盆地延長統次生孔隙的形成除了受沉積有利相帶控制外,還與地層異常壓力的作用密切相關.研究認為隴東地區異常壓力的形成機理主要由於成巖過程中粘土礦物脫水作用.粘土礦物大量脫水時間正好與有機質脫羧期相一致,從而在異常壓力作用下將生油巖中的大量有機酸及co2帶到與之相鄰的儲集層中,並沿著有利儲集相帶運移,在酸性水經過的地方形成大量的次生孔隙,為後期油氣運聚提供有利通道及宿住空間,從現今的勘探結果來看,通過研究地層異常壓力縱橫向分佈特徵,並結合有利相帶研究預測次生孔隙育良帶是行之有效的方法The sediment of tidal flat affect tidal creek greatly too, especially affect the development of curve current of tidal creek. on the upper tidal flat, the clay is abundance, and the sediment is much more viscous, so the curve current develops well
灘面沉積物的組成對潮溝的發育也有較大的影響,尤其是潮溝曲流的發育,愈向潮灘的上部,粘土的含量愈多,沉積物的粘結作用也越強,潮溝越易發育曲流。Steel fiber scatters stress converging in the area of the top end of tiny cracks, restrict the occurrence and development of cracks, diminishes the width of cracks, and enhances the integrity of concrete with the occurrence of cracks via the effect of felting between concrete and steel fiber, and consequently the strength of concrete that resists compression, tension, and shear force increases obviously, and the capability of concrete that resists compact, and fatigue, and the ductility and durability of fissured concrete improve
鋼纖維削弱了混凝土微裂縫尖端的應力集中、限制並約束裂縫的產生和開展、減小裂縫寬度、尤其是通過粘結作用提高了裂后混凝土的整體性,從而使混凝土的抗拉、抗彎、抗剪強度顯著提高,其抗沖擊、抗疲勞、裂后韌性和耐久性也有較大程度的改善。Where the shoe pinches of the repair success is all right combination of young and old concrete. presently, most of the researches inside and outside country made the two into one to against force through felt. in practice, however, it ca n ' t obtain ideal bond capacity only depend on adherence. thus, this paper bring forward a young method to make up the lack of felt capacity - use mechanical joint element to link young and old concrete
新老混凝土之間的良好結合是混凝土修補成功的關鍵所在,目前國內外的研究中絕大部分是通過二者的粘結作用使其結合成為整體共同受力。而實際工程中僅僅依靠粘結力往往達不到理想的結合程度。因此,本文研究的是加強新老混凝土結合,彌補粘結力不足的一種新方法,即採用機械連接件將新老混凝土結合在一起的方法。According to the principle of model discerning and the feature of embankment ' s settlement, the calculation model of soft soil ground ' s settlement is divided into the material discerning of the first model and the best model, in order to consider the soft soil ground ' s settlement affected by the secondly consolidation in the later stage, the merchant visco - elastic model based on the elastic model and the non - linear - elastic model is adopted
根據模型辨識的原則和路基沉降的特點,把軟土沉降計算模型的辨識分為二個層次:介質形態初步模型的辨識和最優模型的辨識。為了考慮軟土次固結作用對軟土地基後期影響,在傳統考慮彈性、非線性彈性模型的模型類屬集合中力口入了merchant粘彈性模型。分享友人