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Preparation method and application of superstrong particle cryogel for concrete
The invention discloses a superstrong particle cryogel for concrete and provides a preparation method and an application mode of the superstrong particle cryogel, which can effectively solve the problem of slow increase of later strength of traditional concrete and greatly improve the conditions of poor corrosion resistance, insufficient hydration reaction and the like of the concrete. The water-based paint comprises the following raw materials: a dispersing agent, nano cellulose, nano silicon-calcium oxide, an auxiliary material and solvent water, wherein the dispersing agent comprises a comb-shaped polymer dispersing agent and a small material. Field tests show that: (1) the early strength is improved, and the setting time is shortened; the final setting time is advanced to 2.5 h, and the 1d compressive strength and the 3d compressive strength are both improved by 30.0% or above compared with those in a blank experiment. And (2) the shrinkage rate of the concrete can be controlled below 5% after the superstrong particle cryogel is added. And (3) the later strength is increased quickly. The 28d compressive strength of the concrete is increased by more than 25.0% compared with that of a blank experiment. And (4) the nano cellulose has a sulfate corrosion resistant effect, the sulfate corrosion resistant coefficient is 70.5% after the nano cellulose is added, and the anti-permeability grade is 24.
本发明公开了一种混凝土用超强粒子晶胶，并提供了该产品的制备方法及应用方式，可以有效解决传统混凝土后期强度增长缓慢的问题，极大地改善混凝土耐腐蚀性差和水化反应不充分等情况，包含以下原料：分散剂、纳米纤维素、纳米硅钙氧化物、辅料以及溶剂水，其中分散剂包括梳状聚合物分散剂和小料。进行现场试验得出以下明显优势：（1）早期强度提高，凝结时间缩短。终凝时间提前至2.5h，1d与3d抗压强度相比空白实验均提高30.0%以上。（2）添加超强粒子晶胶后混凝土收缩率可控制在5%以下。（3）后期强度增长快。混凝土28d抗压强度相比空白实验增加25.0%以上。（4）纳米纤维素具有抗硫酸盐的腐蚀作用，加入后耐硫酸盐腐蚀系数为70.5%，抗渗等级为24。
Preparation method and application of superstrong particle cryogel for concrete
The invention discloses a superstrong particle cryogel for concrete and provides a preparation method and an application mode of the superstrong particle cryogel, which can effectively solve the problem of slow increase of later strength of traditional concrete and greatly improve the conditions of poor corrosion resistance, insufficient hydration reaction and the like of the concrete. The water-based paint comprises the following raw materials: a dispersing agent, nano cellulose, nano silicon-calcium oxide, an auxiliary material and solvent water, wherein the dispersing agent comprises a comb-shaped polymer dispersing agent and a small material. Field tests show that: (1) the early strength is improved, and the setting time is shortened; the final setting time is advanced to 2.5 h, and the 1d compressive strength and the 3d compressive strength are both improved by 30.0% or above compared with those in a blank experiment. And (2) the shrinkage rate of the concrete can be controlled below 5% after the superstrong particle cryogel is added. And (3) the later strength is increased quickly. The 28d compressive strength of the concrete is increased by more than 25.0% compared with that of a blank experiment. And (4) the nano cellulose has a sulfate corrosion resistant effect, the sulfate corrosion resistant coefficient is 70.5% after the nano cellulose is added, and the anti-permeability grade is 24.
本发明公开了一种混凝土用超强粒子晶胶，并提供了该产品的制备方法及应用方式，可以有效解决传统混凝土后期强度增长缓慢的问题，极大地改善混凝土耐腐蚀性差和水化反应不充分等情况，包含以下原料：分散剂、纳米纤维素、纳米硅钙氧化物、辅料以及溶剂水，其中分散剂包括梳状聚合物分散剂和小料。进行现场试验得出以下明显优势：（1）早期强度提高，凝结时间缩短。终凝时间提前至2.5h，1d与3d抗压强度相比空白实验均提高30.0%以上。（2）添加超强粒子晶胶后混凝土收缩率可控制在5%以下。（3）后期强度增长快。混凝土28d抗压强度相比空白实验增加25.0%以上。（4）纳米纤维素具有抗硫酸盐的腐蚀作用，加入后耐硫酸盐腐蚀系数为70.5%，抗渗等级为24。
Preparation method and application of superstrong particle cryogel for concrete
一种混凝土用超强粒子晶胶的制备方法及应用
DING GUOJIE (author) / FAN JIE (author) / AI YUSEN (author)
2022-08-19
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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