The test research on the effects of compound water reducer of NF and ligneous calcium sulphonate is carried out, adaptation for different kinds of cements is discussed, and the lose of siump is determined too.

Adopting the technology of modification of calcium lignosulfonate to develop a kind of hydraulic green high performance concrete(GHPC), which is of good durability, workability, mechanical properties, adaptability, stability in volume and rationality in economy, has been carried out.

Research on retarding mechanism of calcium lignosulfonate to cement paste;

The surface physicochemical properties such as surface activity; adsorption performance and dispersive performance of calcium lignosulfonate (CLS) with different hydroxyl group contents are studied in order to expand its utilization.

In this paper, the calcium lignosulfonate (CL) was fractionated by means of ultrafiltration.

The spherical ligninbased cation exchange resin was prepared with calcium lignosulphonate as raw material in a cheap and non-toxic dispersing medium by reversed phase suspension polymerization.

The experimental study on modified lignin sulfonic acid calcium to prepare complex mortar agent;