掺陶瓷砖抛光微粉混凝土的力学和耐久性能

Mechanical and Durability Properties of Concrete Mixed with Ceramic Tile Polishing Powder

摘要:

研究了掺陶瓷砖抛光微粉（CPP）混凝土的力学和耐久性能。结果表明：CPP在混凝土中能发生火山灰反应，同时具有填充效应；CPP掺量为20%时，砂浆90 d的强度活性指数为114.01%，混凝土90 d的抗压强度达到空白组（不掺CPP混凝土）的97.80%；CPP能显著提高混凝土的抗氯离子渗透性，掺CPP后混凝土的渗透等级降低：90 d时，空白组的电通量超过4 000 C，为高渗透性，掺40%CPP混凝土的电通量低于2 000 C，降为低渗透性。

Abstract:

The mechanical properties and durability of concrete incorporating ceramic tile polishing powder （CPP） were investigated. The results indicate that CPP undergoes a pozzolanic reaction within the concrete while also exhibiting a filler effect. When dosage of CPP is 20%， the activity index of mortar strength at 90 d reaches 114.01%， and the relative strength of concrete reaches 97.80% of the control group（non-CPP concrete）. Additionally， the incorporation of CPP significantly improves the concrete’s resistance to chloride ion penetration. At 90 days， plain cement concrete demonstrates high permeability， with an electric flux exceeding 4 000 C. In contrast， the permeability grade decreases significantly upon the addition of CPP， with the electrical flux falling below 2 000 C when the CPP dosage reaches 40%.