The present study deals with the investigation of durability properties of reinforced concrete fabricated by incorporating fiber type rubber shreds as fine aggregate in concrete and silica fume as a supplementary cementitious material. Concrete designs were produced to replace natural fine aggregate and cement by rubber shreds, and silica fume, respectively. The concrete mixes were studied for compressive strength up to 365 days, abrasion resistance, and water absorption up to 28 days. The carbonation and acid resistance (H₂SO₄ and HCl) properties were studied up to 90 and 180 days, respectively. Corrosion samples were tested up to 18 months for both macrocell current and half-cell potential. The incorporation of rubber shreds lowered the compressive strength of concrete and resistance to water absorption, carbonation, and corrosion. However, the resistance to abrasion and acid attack was enhanced on the utilization of rubber shreds in concrete. The presence of silica fume considerably enhanced the mechanical and durability properties of rubber shreds concrete and lowered the probability of corrosion.

中文翻译：

---

侵蚀性环境对含纤维橡胶碎片和硅粉混凝土耐久性的影响

本研究涉及通过将纤维型橡胶碎片作为混凝土中的细骨料和硅粉作为补充胶结材料而制成的钢筋混凝土的耐久性性能的研究。混凝土设计分别用橡胶碎片和硅粉代替天然细骨料和水泥。研究了混凝土混合物的抗压强度长达 365 天、耐磨性和吸水性长达 28 天。碳化耐酸（H ₂ SO ₄和 HCl) 特性的研究时间分别长达 90 天和 180 天。腐蚀样品的宏电池电流和半电池电位均经过长达 18 个月的测试。橡胶碎片的加入降低了混凝土的抗压强度和抗吸水、碳化和腐蚀的能力。然而，橡胶碎片在混凝土中的使用增强了耐磨性和耐酸蚀性。硅粉的存在大大提高了橡胶碎混凝土的机械和耐久性性能，并降低了腐蚀的可能性。