aggregate vt. 1.集合,(使)聚集。 2.总计,共计,合计。 The sum will aggregate a thousand dollars. 总额共计一千元。 adj. 1.聚合的;(花)聚生的。 2.【地质学;地理学】聚成岩的。 3.合计的,总。 an aggregate flower 聚生花。 n. 1.聚集,集合。 2.总数。 3.聚集体;凝聚体;团粒。 4.【建筑】混凝料。 in the aggregate 总计,合计。
Content of asphalt , aggregate gradation , marshall stability , ratio of bitumen to aggregate and spalling adhesiveness are expatiated in terms of the stability of modified asphalt mixture at high temperature for ji - mu highway measured on the spot , and the rutting damage and control measures are also analysed 摘要根据鸡牡公路工程实践,通过现场试验段割条测试改性沥青混合料高温稳定性,阐述了沥青含量、矿料级配、马歇尔稳定度、油石比、矿料粘附性等,对车辙产生的危害,以及控制措施。
The research results show that aggregate gradation and the nominal maximum aggregate size evidently influence the shear resistance of asphalt mixture ; aggregate flakiness content influences the shear resistance of asphalt mixture , and with the increase of aggregate flakiness content the shear resistance of asphalt mixture decreases ; asphalt binder properties , especially penetration , softening point and viscosity influence the shear resistance of asphalt mixture , and the latter increases with the decrease of penetration and the increase of softening point and viscosity ; asphalt content influences shear resistance of asphalt mixture , and with the increase of binder / aggregate ratio the shear resistance of asphalt mixture decreases ; air void influences shear resistance of asphalt mixture , and usually with the increase of air void the shear resistance of asphalt mixture decreases ; homogeneity does not have a direct and obvious relationship with absolute value of shear resistance of asphalt mixture , but does with variation of shear resistance of asphalt mixture 研究结果表明:集料级配和公称最大集料粒径对沥青混合料抗剪强度有显著的影响;沥青混合料抗剪强度受其集料中针片状含量的影响较大,集料中针片状含量增大,沥青混合料抗剪强度减小;结合料的性质,特别是针入度、软化点和粘度对沥青混合料抗剪强度有较大的影响,随着针入度减小,软化点和粘度增大,沥青混合料抗剪强度增大;含油量对沥青混合料抗剪强度有较大影响,随着油石比的增大,沥青混合料抗剪强度减小;沥青混合料抗剪强度受其空隙率的影响较大,一般随着空隙率的增大,其抗剪强度减小;沥青混合料均匀性与沥青混合料抗剪强度绝对数值间没有明显的关联,而与数值间的变异性有着很好的相关性。
Through much analysis of laboratory experiments , this paper reach the conclusion that aggregate gradation , degree of compaction , water cement ratio and magnitude of cement are the main factors that influence the coefficient of permeability and the compressive resilience modulus of high air void cement - stabilized crushed stone mixture 本文通过大量的室内试验发现,集料级配组成、压实度、水灰比和水泥用量是影响大孔隙水泥稳定碎石混合料渗透系数和抗压回弹模量的主要因素。