基于Design-Expert的全风积沙超高韧性混凝土纤维混杂设计试验
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摘要
基于工业设计软件Design-Expert对PVA纤维和UHMWPE纤维掺量进行精准化设计。通过拟合流动度、抗折强度和抗压强度指标,建立回归方程。利用多目标优化的方法,得出目标纤维的最佳体积掺量,并对全风积沙超高韧性混凝土纤维增强效果进行预估和验证。当PVA纤维与UHWMPE纤维体积掺量为1/3时,混凝土的抗折强度提升38.6%。
Accurately designing the PVA fiber and UHMWPE fiber content is based on the industrial design software Design-Expert. The regression equation was established by fitting the fluidity, flexural strength, and compressive strength indicators. Using the multi-objective optimization method, the optimal volume of the target fiber is obtained. The reinforcement effect of the full-aeolian sand super-high toughness concrete fiber is estimated and verified. When the volume of PVA fiber and UHWMPE fiber is 1:3, the flexural strength of concrete is increased by 38.6%.
Accurately designing the PVA fiber and UHMWPE fiber content is based on the industrial design software Design-Expert. The regression equation was established by fitting the fluidity, flexural strength, and compressive strength indicators. Using the multi-objective optimization method, the optimal volume of the target fiber is obtained. The reinforcement effect of the full-aeolian sand super-high toughness concrete fiber is estimated and verified. When the volume of PVA fiber and UHWMPE fiber is 1:3, the flexural strength of concrete is increased by 38.6%.
引文
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[2]仵鹏涛, 刘中宪, 吴成清, 等. 钢纤维对超高性能混凝土动态压缩特性的影[J]. 天津大学学报:自然科学与工程技术版, 2017, 50(9):939-945.
[3]艾锋. 基于Design-expert软件的汽车挡泥板多目标优化[J]. 热加工工艺. 2015, 44(11): 126-127.
[4]袁银峰. 全珊瑚海水混凝土的配合比设计和基本性能[D]. 南京：南京航空航天大学硕士学位论文, 2015.
[5]孙伟, 钱红萍, 陈惠苏. 纤维混杂及其与膨胀剂复合对水泥基材料的物理性能的影响[J]. 硅酸盐学报. 2000(02): 95-99.
[6]张玉武, 晏麓晖, 李凌锋. UHMWPE纤维混凝土动态压缩力学性能研究[J]. 振动与冲击, 2017, 36(8):92-96.
[7]Noushini A, Samali B, Vessalas K. Effect of polyvinyl alcohol (PVA) fibre on dynamic and material properties of fibre reinforced concrete[J]. Construction & Building Materials, 2013, 49(12):374-383.
[8]王成启, 吴科如. 不同几何尺寸纤维混杂混凝土的混杂效应[J]. 建筑材料学报. 2005(03): 250-255.
[9]史才军, 何稳, 吴泽媚, 等. 纤维对UHPC力学性能的影响研究进展[J]. 硅酸盐通报. 2015, 34(08): 2227-2236.