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2. Formwork - Wikipedia

   en.wikipedia.org/wiki/Formwork

   Formwork. Animation depicting construction of multi-story building using aluminum handset formwork. Modular steel frame formwork for a foundation. Rebar has been stubbed up out of the concrete slab to form the base of future columns. Timber formwork for a concrete column. Adjustable metal screw jacks both stabilize and plumb the form.

3. Ettringite - Wikipedia

   en.wikipedia.org/wiki/Ettringite

   In concrete chemistry, ettringite is a hexacalcium aluminate trisulfate hydrate, of general formula when noted as oxides: 6CaO·Al 2 O 3 ·3SO 3 ·32H 2 O. or 3CaO·Al 2 O 3 ·3CaSO 4 ·32H 2 O. Ettringite is formed in the hydrated Portland cement system as a result of the reaction of tricalcium aluminate (C 3 A) with calcium sulfate, both ...

4. Insulating concrete form - Wikipedia

   en.wikipedia.org/wiki/Insulating_concrete_form

   Insulating concrete form. Insulating concrete form or insulated concrete form (ICF) is a system of formwork for reinforced concrete usually made with a rigid thermal insulation that stays in place as a permanent interior and exterior substrate for walls, floors, and roofs. The forms are interlocking modular units that are dry-stacked (without ...

5. Calcium aluminate cements - Wikipedia

   en.wikipedia.org/wiki/Calcium_aluminate_cements

   ALAG (ALuminous AGgregate) is a synthetic calcium aluminate aggregate manufactured by the fusion of bauxite and limestone into a partially re-crystallized aggregate of approximately 40% alumina. It is essentially Fondu clinker, crushed and sized into grades commonly needed by concrete and castable formulators.

6. Calcium aluminoferrite - Wikipedia

   en.wikipedia.org/wiki/Calcium_aluminoferrite

   2S) (orange) crystals. These are false (interference) colors. Calcium aluminoferrite ( Ca. 2(Al,Fe) 2O. 5) is a dark brown crystalline phase commonly found in cements. In the cement industry it is termed tetra-calcium aluminoferrite or ferrite. In cement chemist notation (CCN), it is abbreviated as C. 4AF meaning 4CaO·Al.

7. Cast-in-place concrete - Wikipedia

   en.wikipedia.org/wiki/Cast-in-place_concrete

   Cast-in-place concrete. Animation depicting construction of multi-story building using aluminum handset formwork. Cast-in-place concrete or Cast-in-situ concrete is a technology of construction of buildings where walls and slabs of the buildings are cast at the site in formwork. [1] This differs from precast concrete technology where slabs are ...