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2. Concrete sealer - Wikipedia

   en.wikipedia.org/wiki/Concrete_sealer

   Concrete sealers are applied to concrete to protect it from surface damage, corrosion, and staining. They either block the pores in the concrete to reduce absorption of water and salts or form an impermeable layer which prevents such materials from passing.

3. List of generic and genericized trademarks - Wikipedia

   en.wikipedia.org/wiki/List_of_generic_and...

   Rubber cement: Bostik Philippines, Inc. Being the first rubber cement brand in the Philippines, eventually used to refer to any brand of rubber contact cement. [193] See also Rugby boy, a collective term for destitute youths known for their use of rubber cement as an inhalant. Saran wrap Cling-film: S. C. Johnson & Son

4. Calcium silicate hydrate - Wikipedia

   en.wikipedia.org/wiki/Calcium_silicate_hydrate

   Calcium silicate hydrate (also shown as C-S-H) is a result of the reaction between the silicate phases of Portland cement and water. This reaction typically is expressed as: 2 Ca 3 SiO 5 + 7 H 2 O → 3 CaO · 2 SiO 2 · 4 H 2 O + 3 Ca(OH) 2 + 173.6 kJ. also written in cement chemist notation, (CCN) as: 2 C 3 S + 7 H → C 3 S 2 H 4 + 3 CH + heat

5. Self-healing concrete - Wikipedia

   en.wikipedia.org/wiki/Self-healing_concrete

   The ancient Romans used a type of lime mortar that has been found to be self-healing. [8] The stratlingite crystals form along the interfacial zones of Roman concrete, binding the aggregate and mortar together and this process continued even after 2000 years and it was discovered by the geologist Marie Jackson and her colleagues in 2014.

6. Cement - Wikipedia

   en.wikipedia.org/wiki/Cement

   A cement is a binder, a chemical substance used for construction that sets, hardens, and adheres to other materials to bind them together. Cement is seldom used on its own, but rather to bind sand and gravel together. Cement mixed with fine aggregate produces mortar for masonry, or with sand and gravel, produces concrete. Concrete is the most ...

7. Court orders Biden admin to stop selling border wall ... - AOL

   www.aol.com/news/court-orders-biden-admin-stop...

   The Biden administration on Friday said it would stop selling off materials slated to be used to build a border wall ahead of the incoming Trump administration, which has promised to bring back ...