grading n. 1.【工業(yè)】平地面,減少斜度。 2.分品,分級(jí),分段,校準(zhǔn)。 3.粒度。
aggregate vt. 1.集合,(使)聚集。 2.總計(jì),共計(jì),合計(jì)。 The sum will aggregate a thousand dollars. 總額共計(jì)一千元。 adj. 1.聚合的;(花)聚生的。 2.【地質(zhì)學(xué);地理學(xué)】聚成巖的。 3.合計(jì)的,總。 an aggregate flower 聚生花。 n. 1.聚集,集合。 2.總數(shù)。 3.聚集體;凝聚體;團(tuán)粒。 4.【建筑】混凝料。 in the aggregate 總計(jì),合計(jì)。
Laboratory tests were carried out on two aggregate gradings with asphalt content of 7 % , 8 % and 9 % , and with cement content of 2 % , 3 % and 4 % respectively 摘要通過(guò)室內(nèi)試驗(yàn)測(cè)試了兩種集料級(jí)配下,乳化瀝青用量分別為7 % 、 8 % 、 9 % ,水泥用量分別為2 % 、 3 % 、 4 %時(shí)水泥乳化瀝青混凝土的物理、力學(xué)性質(zhì)。
The grade composite , road performance and its mechanism are systemically studied . 1 ) the aggregate grade of ogfc is studied through the volume method base on the analysis of the aggregate grades . then the grade is verified and the relation between the grade and pore rate is studied statistically , the typical grades of ogfc are developed ; 2 ) the reasonable pore rate of ogfc is studied on the basis of the balance of mechanics and function performance ; 3 ) the mineral fiber is added to the ogfc mixes to increase asphalt content , thus the anti - water performance of ogfc mixes are improved ; 4 ) high viscous asphalt fit for the preparation of ogfc is prepared through composite modification by sbs and rubber powder ; 5 ) the mechanics mechanism of ogfc is studied in the paper , it shows : asphalt paste , as well as the coarse aggregate skeleton , is essential to the mechanics of ogfc 在分析各國(guó)ogfc級(jí)配的基礎(chǔ)上,運(yùn)用礦料體積法進(jìn)行ogfc級(jí)配設(shè)計(jì),用正交實(shí)驗(yàn)對(duì)礦料級(jí)配進(jìn)行了優(yōu)化設(shè)計(jì),運(yùn)用數(shù)理統(tǒng)計(jì)方法分析礦料級(jí)配和孔隙率之間的關(guān)系,并回歸出礦料關(guān)鍵篩孔通過(guò)率與ogfc骨架空隙結(jié)構(gòu)關(guān)系的數(shù)學(xué)方程,進(jìn)而提出了ogfc的合理級(jí)配;通過(guò)對(duì)不同孔隙率典型級(jí)配混合料的性能研究,綜合力學(xué)和功能性能,得出了ogfc的合理孔隙率范圍:針對(duì)高速公路面層對(duì)ogfc力學(xué)性能方面的要求,本文從瀝青膠結(jié)材料、纖維穩(wěn)定劑兩方面對(duì)ogfc的性能進(jìn)行改善:通過(guò)sbs和橡膠粉復(fù)合改性的方法開發(fā)出了適合ogfc的高粘度改性瀝青,摻加聚合物纖維,提高ogfc的最佳瀝青用量,進(jìn)而改善了混合料的高溫性能和抗水損害性能,優(yōu)化設(shè)計(jì)出能滿足高速公路路用性能,車轍動(dòng)穩(wěn)定度達(dá)5000次/ mm以上,動(dòng)融劈裂強(qiáng)度比90 ,透水系數(shù)31ml / s ,并具有防滑降噪功能的開級(jí)配瀝青磨耗層( ogfc )混合料。
Moreover , the main components of h mineral admixture is procured from industry waste , and its " production procedure is simple , so its " production cost is very low . the most tightness pile up theory and rheology is successfully applied in the designation of self - compacting concrete , and the factors such as sand rate , aggregate grading , paste content and mineral admixtures are been studied . under the guidance of mix design theory and on the basis of mass experiments , c20 - c80 high performance self - compacting concrete is been produced 將最緊密堆積原理和流變學(xué)原理相結(jié)合,運(yùn)用于免振搗混凝土配合比設(shè)計(jì)之中,系統(tǒng)地研究了砂率、集料級(jí)配、水泥漿量、礦物摻合料等因素對(duì)免振搗混凝土物理力學(xué)性能、工作性能、耐久性能的影響,成功配制出從c20 - c80及以上強(qiáng)度等級(jí)的高性能免振搗混凝土。
Based on the chang - yu highway in julin province , this paper focus on gap - graded asphalt mixtures . aggregate grading of the gap - graded hma was designed by means of void design procedure . this paper give out a kind of new gradation of stone matrix asphalt . at the same time , this paper also studies the effect of aggregate size on road - related performance in some different gradings 本文以吉林省長(zhǎng)余高速公路為依托,從瀝青混合料的結(jié)構(gòu)形態(tài)入手,利用體積法,對(duì)骨架密實(shí)型級(jí)配類型的瀝青混合料的級(jí)配進(jìn)行研究,提出新型的瀝青馬蹄脂級(jí)配,并針對(duì)不同級(jí)配的瀝青馬蹄脂碎石混合料,全面分析了粗,細(xì)集料的粒徑變化對(duì)其各種路用性能的影響。
The results of research work show that the values of sand rate , aggregate grading , paste content and mineral admixtures control the degree of tightness pile up and the workability of fresh concrete , furthermore , they determined the mechanics performance and the durability of self - compacting concrete 研究表明,砂率、集料級(jí)配、水泥漿量、礦物摻合料等因素的取值決定了免振搗混凝土的緊密堆積程度及新拌混凝土的工作性能,從而進(jìn)一步?jīng)Q定了免振搗混凝土的物理力學(xué)性能及耐久性能。