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本发明提供了一种利用含铝工业废渣的混凝土高效膨胀剂、其制备方法及其应用。本发明所述利用含铝工业废渣的混凝土高效膨胀剂是利用氧化钙、石膏、锂矿渣和三乙醇胺的多重激发作用增大含铝工业废渣中活性Al2O3的可溶性,所得膨胀剂能够通过水化反应生成氢氧化钙和钙钒石两种膨胀源,该膨胀剂兼具氧化钙类和硫铝酸钙类膨胀剂的特点,具有较大的限制膨胀率、较高的抗压和抗折强度。
The present invention provides a concrete efficient expansion agent using aluminum industrial waste, its preparation method and its application. The concrete high-efficiency expanders using the aluminum-containing industrial waste slag of the invention increases the solubility of the active Al2O3 in the aluminum-containing industrial waste residue by the multiple excitation of calcium oxide, gypsum, lithium slag and triethanolamine, and the obtained expanders can pass the hydration reaction The formation of calcium hydroxide and calcium vanadium stone two kinds of expansion source, the expansion of both calcium oxide and calcium sulfoaluminate expansion agent characteristics, with a larger expansion limit, high compressive strength and flexural strength.