一种添加改性废旧轮胎橡胶粉的水泥混凝土及其制备方法和应用

By treating waste tire rubber powder with a modifier, the problem of its adhesion to cement materials was solved, the mechanical properties of cement concrete were improved, and the effective application of rubber powder in cement concrete was realized.

CN114685110BActive Publication Date: 2026-07-17SUZHOU CONCRETE CEMENT PROD RES INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SUZHOU CONCRETE CEMENT PROD RES INST
Filing Date
2020-12-28
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing technologies, the bonding problem between waste tire rubber powder and cement materials leads to a decrease in the mechanical properties of concrete, such as compressive strength and flexural strength, and traditional modification methods pose a risk of water pollution.

Method used

Waste tire rubber powder is pretreated by using a combination of modifiers such as glycidyl ether epoxy resin, diluent, amine curing agent and silane coupling agent to improve its compatibility with cement materials.

Benefits of technology

It significantly improves the compressive strength, flexural strength, and splitting tensile strength of cement concrete, reduces the elastic modulus, and improves the compatibility of rubber powder with cement-based materials.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明公开了一种添加改性废旧轮胎橡胶粉的水泥混凝土及其制备方法和应用，其中，以重量份计，所述水泥混凝土包括：52.5R水泥300‑400份；碎石1100‑1400份；砂子600‑800份；废旧轮胎橡胶粉10‑100份；改性剂1‑10份；PP纤维0.1‑1份；减水剂1‑5份；消泡剂0.1‑0.3份。本发明提供的水泥混凝土不仅能够大力促进废旧轮胎的回收再利用，而且能够改善水泥混凝土的易开裂的问题。
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