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High-strength concrete taking carbon chromium slag as aggregate, processing device and preparation process of high-strength concrete
The invention discloses high-strength concrete taking carbon chromium slag as aggregate, a processing device and a preparation process of the high-strength concrete. The invention discloses carbon chromium slag concrete, which comprises the following components in parts by weight: 70-85 parts of carbon chromium slag, 0-2 parts of a high-efficiency water reducing agent, 0-2 parts of a retarder, 0-2 parts of an air entraining agent, 0-2 parts of an air entraining water reducing agent, 0-2 parts of an anti-freezing agent, 0-2 parts of a mineral admixture, 2-4 parts of low-calcium aluminate, 1-5 parts of a coarse aggregate material and 1-5 parts of a fine aggregate material. The chromium slag refractory concrete is the best, and the high-aluminum and magnesium aggregate is the second best, the carbon chromium slag raw material is the refractory aggregate suitable for the concrete in comprehensive consideration, and an anti-freezing agent needs to be twisted into the high-strength concrete in winter construction. A common inorganic anti-freezing agent is relatively large in stirring amount, the chemical activity of the common inorganic anti-freezing agent to water is relatively remarkably reduced, the concrete strength is slowly increased, the 28d acceptance strength is relatively low, and the common inorganic anti-freezing agent has relatively remarkable influence on high-strength concrete.
本发明公开了以炭铬渣为骨料的高强度混凝土、加工装置及其制备工艺，包括以下组成，按重量分数计，炭铬渣70‑85份、高效减水剂0‑2份、缓凝剂0‑2份、引气剂0‑2份、引气减水剂0‑2份、防冻剂0‑2份、矿物外加剂0‑2份、低钙铝酸盐2‑4份、粗骨料材料1‑5份和细骨料材料1‑5份，本发明从耐压强度上看，炭铬渣混凝土最好，其次是铬渣的，镁质骨料最低；铬渣耐火混凝土最好，而高铝质和镁质骨料次之，综合考虑，炭铬渣原料是混凝土较为合适的耐火骨料，在冬期施工中，高强混凝土中需要捻入防冻剂。常用的无机防冻剂拨量较大，对水的化学活性降低较显著，导致混凝土强度增长缓慢和28d验收强度偏低，对高强度混凝土的影响较为显著。
High-strength concrete taking carbon chromium slag as aggregate, processing device and preparation process of high-strength concrete
The invention discloses high-strength concrete taking carbon chromium slag as aggregate, a processing device and a preparation process of the high-strength concrete. The invention discloses carbon chromium slag concrete, which comprises the following components in parts by weight: 70-85 parts of carbon chromium slag, 0-2 parts of a high-efficiency water reducing agent, 0-2 parts of a retarder, 0-2 parts of an air entraining agent, 0-2 parts of an air entraining water reducing agent, 0-2 parts of an anti-freezing agent, 0-2 parts of a mineral admixture, 2-4 parts of low-calcium aluminate, 1-5 parts of a coarse aggregate material and 1-5 parts of a fine aggregate material. The chromium slag refractory concrete is the best, and the high-aluminum and magnesium aggregate is the second best, the carbon chromium slag raw material is the refractory aggregate suitable for the concrete in comprehensive consideration, and an anti-freezing agent needs to be twisted into the high-strength concrete in winter construction. A common inorganic anti-freezing agent is relatively large in stirring amount, the chemical activity of the common inorganic anti-freezing agent to water is relatively remarkably reduced, the concrete strength is slowly increased, the 28d acceptance strength is relatively low, and the common inorganic anti-freezing agent has relatively remarkable influence on high-strength concrete.
本发明公开了以炭铬渣为骨料的高强度混凝土、加工装置及其制备工艺，包括以下组成，按重量分数计，炭铬渣70‑85份、高效减水剂0‑2份、缓凝剂0‑2份、引气剂0‑2份、引气减水剂0‑2份、防冻剂0‑2份、矿物外加剂0‑2份、低钙铝酸盐2‑4份、粗骨料材料1‑5份和细骨料材料1‑5份，本发明从耐压强度上看，炭铬渣混凝土最好，其次是铬渣的，镁质骨料最低；铬渣耐火混凝土最好，而高铝质和镁质骨料次之，综合考虑，炭铬渣原料是混凝土较为合适的耐火骨料，在冬期施工中，高强混凝土中需要捻入防冻剂。常用的无机防冻剂拨量较大，对水的化学活性降低较显著，导致混凝土强度增长缓慢和28d验收强度偏低，对高强度混凝土的影响较为显著。
High-strength concrete taking carbon chromium slag as aggregate, processing device and preparation process of high-strength concrete
以炭铬渣为骨料的高强度混凝土、加工装置及其制备工艺
ZHU LINGYING (author) / ZHANG ZHIYUAN (author) / ZHU XINXIONG (author)
2023-05-26
Patent
Electronic Resource
Chinese
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