A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Concrete expanding agent and preparation method thereof
The invention particularly discloses a concrete expanding agent. The concrete is prepared from the following raw materials in parts by weight: 20-30 parts of sinking beads, 10-20 parts of natural polymer cellulose, 10-20 parts of lignin, 2-6 parts of water-absorbent resin, 12-18 parts of elastic aggregate, 3-7 parts of a dispersible activator, 0.2-0.6 part of a water reducing agent, 5-11 parts oflatex, 2-8 parts of water-soluble resin, 0.4-1 part of a dispersing agent, 0.4-0.8 part of a defoaming agent, 4-10 parts of aluminum sulfate, 12-24 parts of calcium oxide, 0.4-1 part of hydroxylate, 1-5 parts of powdered asphalt, 2-6 parts of retarder and a proper amount of water. The modified lignin and the natural polymer cellulose are added, so that the cracking risk caused by concrete shrinkage can be reduced to a relatively high degree, the problems of pollution, treatment difficulty, land occupation and emotional opposition among people and governments caused by straws are also relieved,and the method is an environment-friendly, economic, safe, high in filling strength and low in cost. The effect of turning waste into wealth is realized.
本发明具体公开一种混凝土膨胀剂，包括以下重量份的原料：沉珠20‑30重量份、天然高分子纤维素10‑20重量份、木质素10‑20重量份、吸水性树脂2‑6重量份、弹性骨料12‑18重量份、可分散活化剂3‑7重量份、减水剂0.2‑0.6重量份、乳胶5‑11重量份、水溶性树脂2‑8重量份、分散剂0.4‑1重量份、消泡剂0.4‑0.8重量份、硫酸铝4‑10重量份、氧化钙12‑24重量份、羟基羟酸盐0.4‑1重量份、粉末沥青1‑5重量份、缓凝剂2‑6重量份和适量的水分。本发明通过添加经改性后的木质素和天然高分子纤维素，从而可在较高的程度上降低了混凝土收缩产生的开裂风险，还缓解了秸秆带来的污染、处理困难、占地、民众政府之间情绪对立问题，是一种环保、经济、安全、充填强度高、成本低的技术，具有变废为宝的功效。
Concrete expanding agent and preparation method thereof
The invention particularly discloses a concrete expanding agent. The concrete is prepared from the following raw materials in parts by weight: 20-30 parts of sinking beads, 10-20 parts of natural polymer cellulose, 10-20 parts of lignin, 2-6 parts of water-absorbent resin, 12-18 parts of elastic aggregate, 3-7 parts of a dispersible activator, 0.2-0.6 part of a water reducing agent, 5-11 parts oflatex, 2-8 parts of water-soluble resin, 0.4-1 part of a dispersing agent, 0.4-0.8 part of a defoaming agent, 4-10 parts of aluminum sulfate, 12-24 parts of calcium oxide, 0.4-1 part of hydroxylate, 1-5 parts of powdered asphalt, 2-6 parts of retarder and a proper amount of water. The modified lignin and the natural polymer cellulose are added, so that the cracking risk caused by concrete shrinkage can be reduced to a relatively high degree, the problems of pollution, treatment difficulty, land occupation and emotional opposition among people and governments caused by straws are also relieved,and the method is an environment-friendly, economic, safe, high in filling strength and low in cost. The effect of turning waste into wealth is realized.
本发明具体公开一种混凝土膨胀剂，包括以下重量份的原料：沉珠20‑30重量份、天然高分子纤维素10‑20重量份、木质素10‑20重量份、吸水性树脂2‑6重量份、弹性骨料12‑18重量份、可分散活化剂3‑7重量份、减水剂0.2‑0.6重量份、乳胶5‑11重量份、水溶性树脂2‑8重量份、分散剂0.4‑1重量份、消泡剂0.4‑0.8重量份、硫酸铝4‑10重量份、氧化钙12‑24重量份、羟基羟酸盐0.4‑1重量份、粉末沥青1‑5重量份、缓凝剂2‑6重量份和适量的水分。本发明通过添加经改性后的木质素和天然高分子纤维素，从而可在较高的程度上降低了混凝土收缩产生的开裂风险，还缓解了秸秆带来的污染、处理困难、占地、民众政府之间情绪对立问题，是一种环保、经济、安全、充填强度高、成本低的技术，具有变废为宝的功效。
Concrete expanding agent and preparation method thereof
一种混凝土膨胀剂及其制备方法
SUN LICHUN (author)
2021-02-23
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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