摘要
响应国家绿色环保政策,将不易降解的废旧轮胎机械处理为橡胶颗粒,通过量化橡胶颗粒对混凝土力学性能的影响,使橡胶混凝土优势和力学性能降低之间找到平衡。采用本文试验并参考前人数据,在既有考虑普通混凝土抗压强度、橡胶替代率和替代骨料粒径三因素橡胶混凝土单轴抗压强度公式的基础上,引入橡胶颗粒改性的影响因子,得到改性橡胶混凝土的抗压强度模型。结果表明:改性影响率与改性抗压强度有较大的相关性,且该修正模型的预测值与实测值的相对误差大部分在15%以内,故该模型在预测改性橡胶混凝土抗压强度方面有较高的准确性,为废旧轮胎橡胶混凝土的使用提供了一定的参考价值。
In response to the national green environmental protection policy,waste tires that are not easily degradable were mechanically processed into rubber particles.By quantifying the impact of rubber particles on the mechanical properties of concrete,a balance was struck between the advantages of rubber concrete and the reduction in its mechanical properties.Using the experiments described in this paper and referencing previous data,a modified uniaxial compressive strength formula for rubber concrete was derived,considering the three factors of normal concrete compressive strength,rubber replacement rate,and replacement aggregate particle size.By introducing a modified factor for the influence of rubber particle modification,a compressive strength model for modified rubber concrete was obtained.The results showed that there was a strong correlation between the modification influence rate and the modified compressive strength.Furthermore,the relative error between the predicted and measured values of this revised model is mostly within 15%,indicating high accuracy in predicting the compressive strength of modified rubber concrete.The model provides a certain reference value for the use of rubber concrete.
作者
李舒静
王连坤
姚侃
LI Shujing;WANG Liankun;YAO Kan(School of Civil Engineering and Architecture,Wuyi University Jiangmen 529020,China;Unit 95338 of Chinese Peoples Liberation Army Guangzhou 510052,China)
出处
《广东土木与建筑》
2025年第1期97-100,104,共5页
Guangdong Architecture Civil Engineering
