Concrete

thumb|Very high-speed photography of a small projectile striking a thin [[aluminium plate at 7,000 m/s. The impact causes the projectile to disintegrate, and generates a large number of small fragments from the aluminium (spallation). This can occur without penetration of the plate.]]

material simulating natural stone

thickness of concrete above the reinforcement bars

Granular slag by-product of iron and steel-making used as supplementary cementitious material

organization

building material consisting of aggregates cemented by a binder

Superplasticizers (SPs), also known as high-range water reducers (HRWRs), are additives used for making high-strength concrete or to place self-compacting concrete. Plasticizers are chemical compounds enabling the production of concrete with approximately 15% less water content. Superplasticizers allow reduction in water content by 30% or more. These additives are employed at the level of a few weight percent. Plasticizers and superplasticizers also retard the setting and hardening of concrete.

concrete that is manufactured in a batch plant, according to a set engineered mix design

form of ashlar masonry used in Carthaginian and ancient Roman architecture

consequence of construction and CO2 emission from cement kilns

LiTraCon is a translucent concrete building material. The name is short for "light-transmitting concrete". The material is made of 96% concrete and 4% by weight of optical fibers. It was developed in 2001 by Hungarian architect Áron Losonczi working with scientists at the Technical University of Budapest.

thumb|right|Pozzolana from Mount Vesuvius volcano, Italy Pozzolana or pozzuolana ( , ), also known as pozzolanic ash (), is a natural siliceous or siliceous-aluminous material that reacts with calcium hydroxide in the presence of water at room temperature (cf. pozzolanic reaction). In this reaction insoluble calcium silicate hydrate and calcium aluminate hydrate compounds are formed possessing cementitious properties. The designation pozzolana is derived from one of the primary deposits of volcanic ash used by the Romans in Italy, at Pozzuoli. The modern definition of pozzolana encompasses any

voluntary trapping tiny air bubbles in concrete

Tacharanite is a calcium aluminium silicate hydrate (C-A-S-H) mineral of general chemical formula with some resemblance to the calcium silicate hydrate (C-S-H) mineral tobermorite. It is often found in mineral assemblage with zeolites and other hydrated calcium silicates.

Metakaolin is the anhydrous calcined form of the clay mineral kaolinite. Rocks that are rich in kaolinite are known as china clay or kaolin, traditionally used in the manufacture of porcelain. The particle size of metakaolin is smaller than cement particles, but not as fine as silica fume.

chemical compound

Instrument used for measuring the thickness of the concrete cover above reinforcement bars

bench known for hostile design

museum in Odesa, Ukraine

concrete which has been mechanically ground, honed, and polished

concrete flooring structural system

pavement material

Test used in analytical chemistry

structure for setting concrete which rises with the building

concrete

Rugosity, fr, is a measure of small-scale variations of amplitude in the height of a surface,

concrete containing oyster shells, used in southeastern Colonial America

concrete that has been imprinted, or that is patterned, textured, or embossed to resemble oher materials

Calcium chloroaluminate formed by reaction of AFm hydrates with chloride ions

high temperature rotating oven used for producing clinker

combustion residue of coal or waste agglomerated in the lower part of an oven

composite construction material with elemental sulfur as a binder

thumb|Biorock forming on rebar in [[seawater in the presence of a small electric current to form an electrified reef]] Biorock (also seacrete) is a cement-like engineering material formed when a small electric current is passed between underwater metal electrodes placed in seawater causing dissolved minerals to accrete onto the cathode to form a thick layer of limestone. This 'accretion process' can be used to create building materials or to create artificial 'electrified reefs' for the benefit of corals and other sea-life. Discovered by Wolf Hilbertz in 1976, biorock was protected by patents

Salt-concrete (or salzbeton) is a building material that is used to reduce the water inflow in mining shafts in salt mines. It is composed of 16% cement, 39% halite, 16% limestone powder, 14% water and 15% sand.

thumb|upright|Calthemite straw stalactite growing from the concrete ceiling of an undercover car-park thumb|upright|Calthemite straw stalactites, the rightmost example demonstrating bending due to the direction of air currents during its formation

bendable concrete