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2. Carbonatation - Wikipedia

   en.wikipedia.org/wiki/Carbonatation

   Carbonatation is a slow process that occurs in concrete where lime (CaO, or Ca(OH) 2 ) in the cement reacts with carbon dioxide (CO 2) from the air and forms calcium carbonate. The water in the pores of Portland cement concrete is normally alkaline with a pH in the range of 12.5 to 13.5.

3. Silicification - Wikipedia

   en.wikipedia.org/wiki/Silicification

   Silicic acid (H 4 SiO 4) in the silica-enriched fluids forms lenticular, nodular, fibrous, or aggregated quartz, opal, or chalcedony that grows within the rock. [5] Silicification happens when rocks or organic materials are in contact with silica-rich surface water, buried under sediments and susceptible to groundwater flow, or buried under ...

4. Insulating concrete form - Wikipedia

   en.wikipedia.org/wiki/Insulating_concrete_form

   The first expanded polystyrene ICF Wall forms were developed in the late 1960s with the expiration of the original patent and the advent of modern foam plastics by BASF. [citation needed] Canadian contractor Werner Gregori filed the first patent for a foam concrete form in 1966 with a block "measuring 16 inches high by 48 inches long with a tongue-and-groove interlock, metal ties, and a waffle ...

5. Cement - Wikipedia

   en.wikipedia.org/wiki/Cement

   This cement is made by heating limestone (calcium carbonate) with other materials (such as clay) to 1,450 °C (2,640 °F) in a kiln, in a process known as calcination that liberates a molecule of carbon dioxide from the calcium carbonate to form calcium oxide, or quicklime, which then chemically combines with the other materials in the mix to ...

6. Carbonate - Wikipedia

   en.wikipedia.org/wiki/Carbonate

   A carbonate is a salt of carbonic acid, (H 2 CO 3), [2] characterized by the presence of the carbonate ion, a polyatomic ion with the formula CO 2− 3. The word "carbonate" may also refer to a carbonate ester , an organic compound containing the carbonate group O=C(−O−) 2 .

7. Types of concrete - Wikipedia

   en.wikipedia.org/wiki/Types_of_concrete

   Stamped concrete is an architectural concrete that has a superior surface finish. After a concrete floor has been laid, floor hardeners (can be pigmented) are impregnated on the surface and a mold that may be textured to replicate a stone / brick or even wood is stamped on to give an attractive textured surface finish.

8. Rona (store) - Wikipedia

   en.wikipedia.org/wiki/Rona_(store)

   Rona Home & Garden stores are large, ranging from 85,000 to 150,000 square feet (7,900 to 13,900 m 2), with a warehouse-style similar to The Home Depot and Lowe's. Faced with chronic under-performance in some markets outside of Quebec, Rona closed six big box stores in 2012, five in Ontario and one in British Columbia.

9. Silicate carbonate - Wikipedia

   en.wikipedia.org/wiki/Silicate_carbonate

   Silicate carbonate minerals can be formed in limestone metamorphosed by heating from igneous intrusions. [1] Scawtite forms where the activity of calcium is high compared to H +. Spurrite forms in a limited range of calcium activity and high silica activity. [2] In magma, a carbonate rich melt is imiscible with a silicate melt. [3]