Abstract: The method of synthesizing a non-toxic and water-soluble cross-linker is introduced. This novel cross-linker could replace the ordinary cross-linking agent N’-Methylenebisacrylamide, a material neither easily dissolved nor environmental-friendly, which is commonly used in acrylate grouting. The ingredients of CW520 acrylate chemical grouting material synthesized by this new cross-linker have been determined. Tests on the mechanical properties of slurries and gels indicate that CW520 acrylate grouting material is featured by low viscosity, good fluidity, low osmotic coefficient, and can be injected into tiny cracks with controllable gelling time and high compressive strength of consolidated sand. It’s of great practical value and could be utilized widely.

Key words: acrylate, cross-linking agent, synthesis, chemical grouting, properties of slurry