2results about How to "Impermeable" patented technology

This application relates to a traction-type continuous core membrane water-stopping system, comprising an undisturbed soil mixing body (2), a closed or long continuous core membrane (1) erected in the undisturbed soil mixing body (2) after implementation, and auxiliary components (3) for sealing nodes. The implementation components for forming this water-stopping system include the core membrane (1), a casing (4) containing the core membrane (1) and a forwarding device (5), the forwarding device (5), an implantation device (6), a traction rope (8), and a traction device (7). The forwarding device (5) connects the traction rope (8) and the core membrane (1) and pulls the built-in core membrane (1) forward and unfolds within the undisturbed soil mixing body (2). The traction device (7) pulls the forwarding device (5) and the core membrane (1) unfold within the undisturbed soil mixing body (2). This system can be effectively implemented and forms a continuous and reliable water-stopping structure. It has a fast construction speed, good water-stopping effect, and low cost, and is especially suitable for foundation pit and slope water-stopping.

This invention discloses a seepage-proof, low-shrinkage mortar and its preparation method. The seepage-proof, low-shrinkage mortar comprises, by weight, 45-60 parts of seepage-proof, low-shrinkage cementitious material; 130-180 parts of manufactured sand; 1-3 parts of water-repellent agent; and 40-60 parts of water. This invention uses green inorganic materials for preparation, exhibiting a micro-expansion effect, effectively avoiding the problem of large material shrinkage, while also improving the seepage resistance of the cementitious material, thus possessing the advantages of seepage prevention and low shrinkage.