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2. Ferrocement - Wikipedia

   en.wikipedia.org/wiki/Ferrocement

   Ferrocement or ferro-cement [1] is a system of construction using reinforced mortar [2] or plaster (lime or cement, sand, and water) applied over an "armature" of metal mesh, woven, expanded metal, or metal-fibers, and closely spaced thin steel rods such as rebar. The metal commonly used is iron or some type of steel, and the mesh is made with ...

3. Calcium aluminate cements - Wikipedia

   en.wikipedia.org/wiki/Calcium_aluminate_cements

   So, CAC cement must not be confused with calcium sulfo-aluminate (CSA) cement containing calcium sulfate and invented later in 1936. [ 6 ] The main constituent, and also the most reactive phase, of calcium aluminate cements is the monocalcium aluminate ( CaAl 2 O 4 = CaO · Al 2 O 3 , also written as CA in the cement chemist notation ).

4. AFm phases - Wikipedia

   en.wikipedia.org/wiki/AFm_phases

   An AFm phase is an "alumina, ferric oxide, monosubstituted" phase, or aluminate ferrite monosubstituted, or Al 2 O 3, Fe 2 O 3 mono, in cement chemist notation (CCN). AFm phases are important hydration products in the hydration of Portland cements and hydraulic cements.

5. Reinforced concrete - Wikipedia

   en.wikipedia.org/wiki/Reinforced_concrete

   Concrete is a mixture of coarse (stone or brick chips) and fine (generally sand and/or crushed stone) aggregates with a paste of binder material (usually Portland cement) and water. When cement is mixed with a small amount of water, it hydrates to form microscopic opaque crystal lattices encapsulating and locking the aggregate into a rigid shape.

6. Calcium aluminoferrite - Wikipedia

   en.wikipedia.org/wiki/Calcium_aluminoferrite

   The calcium aluminoferrite phase acts as a repository for many of the minor elements in the clinker. Most of the transition metals in the cement are found in the ferrite phase, notably titanium, manganese and zinc. There is also a substantial amount of magnesium and silicon, and because of this, oxides other than CaO, Al 2 O 3 and Fe 2 O

7. Sisters Separated into Forced Labor Camps During World ... - AOL

   www.aol.com/lifestyle/sisters-separated-forced...

   Sisters Helena and Barbara Stefaniak had their worlds turned upside down after the start of World War II. The sisters, who were living in Poland, were separated and put into work camps as teens ...

8. Slag - Wikipedia

   en.wikipedia.org/wiki/Slag

   Today, ground granulated blast furnace slags are used in combination with Portland cement to create "slag cement". Granulated blast furnace slags react with portlandite (Ca(OH) 2), which is formed during cement hydration, via the pozzolanic reaction to produce cementitious properties that primarily contribute to the later strength gain of ...

9. Neuer gets sent off for 1st time and Bayern Munich exits ...

   www.aol.com/neuer-gets-sent-off-1st-220513912.html

   Manuel Neuer was sent off for the first time and Bayern Munich crashed out of the German Cup in the third round with a 1-0 loss at home to defending champion Bayer Leverkusen on Tuesday. The 38 ...