lime slurry
31List of Chinese inventions — A bronze Chinese crossbow mechanism with a buttplate (the wooden components have …
32Coal — Sedimentary Rock Anthracite coal Composition Primary carbon Secondary hydrogen, sulfur …
33Road surface — A road in the process of being resurfaced Road surface (British English) or pavement (American English) is the durable surface material laid down on an area intended to sustain vehicular or foot traffic, such as a road or walkway. In the past… …
34Harl — Harling is a Scottish term describing an exterior building surfacing technique. The theory of harling is to produce a long lasting weatherproof shield for a stone building. The pigment is embedded in the harled material, thus obviating the need… …
35Acid-alkali reaction — An acid alkali reaction is a special case of an acid base reaction, where the base used is also an alkali. When an acid reacts with an alkali it forms a metal, salt and water. Acid alkali reactions are also a type of neutralisation reaction.In… …
36Earthen plaster — is a blend of clay, fine aggregate, and fiber. Other common additives include pigments, lime, casein, animal dung, and linseed oil. Earthen plaster is usually applied to masonry, cob, or straw bale interiors or exteriors as a wall finish. It… …
37Calcium carbonate — Calcium carbonate …
38Potassium hydroxide — Potassium hydroxide …
39Rammed earth — The ruins of a Han Dynasty (202 BCE – 220 CE) Chinese watchtower made of rammed earth at Dunhuang, Gansu province, at the eastern end of the Silk Road …
40chromium processing — Introduction preparation of the ore for use in various products. Chromium (Cr) is a brilliant, hard, refractory metal that melts at 1,857° C (3,375° F) and boils at 2,672° C (4,842° F). In the pure state, it is resistant to ordinary… …
