摘要
采用正交试验,研究塑钢纤维掺量、橡胶颗粒粒径及橡胶掺量对混凝土工作性及力学性能的影响,根据极差与方差分析结果,得出塌落度、抗压强度、抗折强度、劈拉强度的最优配比。结果表明,塑钢纤维增强橡胶混凝土其最佳配比为塑钢纤维掺量6 kg/m3,橡胶颗粒粒径10目,橡胶颗粒掺量28.3 L/m3。在抗压强度相当的情况下,最佳配比配制的混凝土较基准混凝土,其抗折强度和劈拉强度分别提高16.1%和13.4%;拉压比和折压比分别提高28.57%和34.54%,抗冻标号可达F225,混凝土的脆性和抗裂性得到明显改善。
The article study on plastic fiber content, rubber particle size and volume influence slump, compressive strength, flexural strength, and plitting tensile strength of concrete by orthogonal test. The best ratio of plastic fiber-rubber concrete is obtained. The result shows, the optimum proportion of plastic fiber is 6 kg/m^3, the size of rubber particle is 10 mesh, the amount of rubber particles is 28.3 L/m^3. In the case of compressive strength close to, between plastic fiber reinforced concrete and reference concrete. The flexural strength and tensile strength were increased 16.1% and 13.4%. The tension-compression ratio and the ratio of flexural strength to compressive strength were increased 28.57% and 34.54%, frost resistance up to F225, compared with normal concrete. The brittleness and crack resistance of concrete is improved obviously.
出处
《非金属矿》
CAS
CSCD
北大核心
2018年第2期35-37,共3页
Non-Metallic Mines
基金
国家自然科学基金(51474045)
河南省高等学校重点科研项目计划资助(16A560013
18A560019)
关键词
塑钢纤维
橡胶颗粒
抗压强度
抗折强度
优化分析
plastic fiber
rubber crumbs
compressive strength
rupture strength
optimization analysis
