Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The present invention discloses a concrete anti-cracking modifier, which is prepared from the following raw materials by weight: 2.5-3.3 parts of copper ammonia lignin, 1.5-2.8 parts of hydroxyethylenediamine, 3-5.2 parts of dimer acid potassium, 1.5-2.6 parts of sodium sorbate, 1.5-3.3 parts of octadecanamine phosphate, 5-8 parts of rubber powder, 1.7-3.5 parts of isobutyl p-hydroxybenzoate, and 1.6-3.3 parts of diisooctyl succinate magnesium sulfonate. Compared with the existing modifier in the prior art, the concrete anti-cracking modifier of the present invention has the following characteristics that: the lignin is softened when the temperature achieves 170 DEG C, and is liquefied when the temperature achieves 200 DEG C, such that a large number of pore channels are remained in the concrete, and the pressure produced by steam expansion in the concrete can be released through the pore channels so as to reduce the possibility of explosion or collapse of the concrete; and after the concrete is mixed with the lignin, the three-dimensional staggered support network is formed in the concrete so as to improve the anti-cracking performance of the concrete.
The present invention discloses a concrete anti-cracking modifier, which is prepared from the following raw materials by weight: 2.5-3.3 parts of copper ammonia lignin, 1.5-2.8 parts of hydroxyethylenediamine, 3-5.2 parts of dimer acid potassium, 1.5-2.6 parts of sodium sorbate, 1.5-3.3 parts of octadecanamine phosphate, 5-8 parts of rubber powder, 1.7-3.5 parts of isobutyl p-hydroxybenzoate, and 1.6-3.3 parts of diisooctyl succinate magnesium sulfonate. Compared with the existing modifier in the prior art, the concrete anti-cracking modifier of the present invention has the following characteristics that: the lignin is softened when the temperature achieves 170 DEG C, and is liquefied when the temperature achieves 200 DEG C, such that a large number of pore channels are remained in the concrete, and the pressure produced by steam expansion in the concrete can be released through the pore channels so as to reduce the possibility of explosion or collapse of the concrete; and after the concrete is mixed with the lignin, the three-dimensional staggered support network is formed in the concrete so as to improve the anti-cracking performance of the concrete.