enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. Damp proofing - Wikipedia

   en.wikipedia.org/wiki/Damp_proofing

   A DPC layer is usually laid below all masonry walls, regardless if the wall is a load bearing wall or a partition wall. A damp-proof membrane (DPM) is a membrane material applied to prevent moisture transmission. A common example is polyethylene sheeting laid under a concrete slab to prevent the concrete from gaining moisture through capillary ...

3. Sodium silicate - Wikipedia

   en.wikipedia.org/wiki/Sodium_silicate

   A chemical reaction occurs with the excess Ca(OH) 2 (portlandite) present in the concrete that permanently binds the silicates with the surface, making them far more durable and water repellent. This treatment generally is applied only after the initial cure has taken place (approximately seven days depending on conditions).

4. Grout - Wikipedia

   en.wikipedia.org/wiki/Grout

   Grout sealer is a water-based or solvent-based sealant applied over dried grout that resists water, oil, and acid-based contaminants. Grout cleaner is a basic cleaning solution that is applied on grout lines and removes the dirt and dust.

5. Heidelberg Materials - Wikipedia

   en.wikipedia.org/wiki/Heidelberg_Materials

   The enlarged group has activities in over 50 countries with 51,000 employees working at almost 3,000 production sites. Heidelberg Materials operates around 130 cement plants with an annual cement capacity of around 170 million tonnes, around 1,300 ready-mixed concrete production sites, and just under 600 aggregates quarries. [2]

6. Sealant - Wikipedia

   en.wikipedia.org/wiki/Sealant

   In the 17th century glazing putty was first used to seal window glass made with linseed oil and chalk, later other drying oils were also used to make oil-based putties. [4] In the 1920s, polymers such as acrylic polymers, butyl polymers and silicone polymers were first developed and used in sealants. By the 1960s, synthetic-polymer-based ...

7. Calcium silicate hydrate - Wikipedia

   en.wikipedia.org/wiki/Calcium_silicate_hydrate

   3 S + 7 H → C 3 S 2 H 4 + 3 CH + heat. or, tricalcium silicate + water → calcium silicate hydrate + calcium hydroxide + heat The stoichiometry of C-S-H in cement paste is variable and the state of chemically and physically bound water in its structure is not transparent, which is why "-" is used between C, S, and H. [4]