1Study on Ultrasonic Test of Mortar Specimens with Cracks Using Non-collinear Mixing MethodLIU Jianfeng, WANG Kui, PENG Aihong, ZHAO Mingjie221-2272Microstructure and Mechanical Properties of Excess-Sulfate Phosphogypsum Slag Cementitious Road Base MaterialXU Fang, LI Heng, SUN Tao, NIE Yutao, DING Chao228-234,2773Mix Proportion Design Method of Pervious Concrete Based on Aggregate SphericityWANG Chao, ZHANG Tongsheng, XIE Xiaogeng, LI Bin, YANG Donglai235-2414Calculation Model of Concrete Self-desiccation Considering Dynamic Water Release of Internal Curing AgentDING Xiaoping, ZHANG Jun, HAN Yudong, QI Lijian, LI Wei242-2475Moisture Absorption Process and Prediction Model of Recycled Concrete Mixed with Fly AshJIANG Jianhua, WU Qi, FU Yongquan, LIN Mingyi, SUI Yuan248-2556Effect of Expansive Additives on Basic Creep of Early-Age ConcreteLI Hua, WANG Yang, WANG Yujiang, LIU Jiaping, TIAN Qian256-2627Slow-Release Effect of Polycarboxylate Superplasticizers with Various Functional GroupsSUN Zhenping, LI Zuyue, PANG Min, WU Lelin, GE Haosheng263-2698Seismic Fragility Analysis of HPFRC Energy Dissipation Wall-RC Frame StructureYANG Penghui, LIANG Xingwen, XIN Li, HE Wei270-2779Effect of Ultraviolet Aging on Cracking Characteristics of Warm Mix Crumb Rubber Modified Asphalt MortarCUI Shichao, WANG Lan285-29310Back Calculation Method of Asphalt Stiffness Modulus Based on Shear Relaxation TestWANG Qin, DU Zhenyu, MAO Juliang, XIAO Feipeng, YUAN Jie294-299,31311Low Temperature Crack Propagation and Evolution of Asphalt MixtureDU Jianhuan, REN Dongya, AI Changfa, QIU Yanjun300-30612Effect of Different Expanders on Properties of Cement Based Grouting MaterialLIU Yunxiao, CHI Yinyin, TIAN Wei, HOU Yingjie, ZHANG JiahangResearch Notes307-31313Combination of Ettringite and Chloride Ion in Different Chloride SolutionsZHANG Jinshan, YAO Yan, WANG Xin, GUO Suihua, DONG GangResearch Notes314-31914Rheological Property Evaluation of Heavy Bio-oil Recycled Asphalt Based on DSR TestFAN Shiping, ZHU Hongzhou, ZHONG WeimingResearch Notes320-326