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Author:

邓宗才 (邓宗才.) (Scholars:邓宗才) | 刘希成 (刘希成.)

Indexed by:

CQVIP PKU

Abstract:

采用等体积置换法,将4目(4.75 mm)、40目(0.425 mm)两种粒径橡胶微粒分别按10%、20%、30%取代细骨料配制橡胶混凝土,并进行单轴受压及四点弯曲荷载作用下变形性能试验,研究橡胶微粒粒径、掺量对混凝土压弯性能的影响.试验结果表明:橡胶混凝土的单轴抗压强度及弹性模量较基准混凝土均有大幅度的降低,但变形能力明显增加,当掺量为30%时,峰值应变可达到基准混凝土的1.66倍;弯曲荷载作用下,试件极限挠度呈明显的增长,抗折强度随掺量的增加逐渐降低.表明橡胶微粒降低混凝土强度,但可显著提高其变形性能.

Keyword:

峰值应变 橡胶混凝土 极限挠度 等体积置换

Author Community:

  • [ 1 ] [邓宗才]北京工业大学
  • [ 2 ] [刘希成]北京工业大学

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Source :

公路

ISSN: 0451-0712

Year: 2011

Issue: 9

Page: 186-190

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count: 1

Chinese Cited Count:

30 Days PV: 8

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