覆膜型天然钠基膨润土防水毯在市政工程中的应用

Application of Coated Natural Sodium Bentonite Waterproof Blanket in Municipal Engineering of Longping Road

覆膜型天然钠基膨润土防水毯作为一种环境友好型防水材料,其特性在于遇水分解后膨胀形成致密的胶凝隔膜,以实现高效防水效能。文中详细阐述龙坪路市政工程项目中,主体构造防水采用此类型防水毯的施工工艺及其技术细节,并结合施工完毕后的实地防渗效能评估,证明该覆膜型天然钠基膨润土防水毯在明挖隧道工程应用中的较大潜力与可行性。

Laminated natural sodium bentonite waterproof blanket,as an environmentally friendly waterproof material,is characterized by that it can expand to form a dense gelentiate diaphragm after water decomposition,so as to achieve a high degree of waterproof efficiency.This study expounds the construction technology and technical details of the waterproof layer of this type of waterproof blanket,combined with the evaluation of field impermeability after the construction,and strongly proves the wide potential and feasibility of the coated natural sodium bentonite waterproof blanket in open tunnel engineering.