... based on calcium sulpho-aluminate cement, mixed with relevant additives in appropriate proportion, the feature of which is setting and ... Slight expansion, good capability of anti-penetration. Paste curing in water after 3 days, no penetration under 1.5Mpa.4 ... mortar or bricks, suitable for water-proofing and anti-penetration in underground engineering, water sluicing and piping, sewage farming system, ...