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Concrete Flooring-Tiles-and pathology-concrete pavers

and concrete mix design Concrete

The settlement is a test procedure according to ASTM C 143
should be performed:

The concrete cylinder facing significant pre-compression failure and should realuizarse ASTM 1231}

The compressive failure of concrete must be done according to ASTM C39

tiles precast concrete tiles are generally composed of two layers, layer or view footprint and back or vice versa. In the case of monolayers tiles or reverse back there, leaving only the layer formed by sight.
layer or trace view is composed of cement, marble, inorganic pigments and crushed marble, granite or hard stone, as follows:

Source: http://www.tecnopavimento.org/tecnopavimento / 3-3-Characteristics-physical-y.227.0.html

The outer surface of this layer is called a face or fingerprint. Following the basic manufacturing process (Vibropress) can be applied surface finishing treatments such as grinding, washing, blasting, etc. to leave it the dry or get different textures its front face. The combination of different types of aggregates in the view layer, both in particle size (micro-grain, medium, coarse or pitching), and the color of the pigment aggregate and cement, can produce a wide variety of colors and tones.
With secondary treatment, will get different surface textures of the face side, providing more options for design and adaptation to the needs of the area to be paved, used for paving both interior surfaces (normal use, intensive and industrial) and outdoors. In indoor, three classes (normal, intensive and industrial) to select the right material for every need. In exterior use, their different breaking loads can also select the materials required in each area. Outdoor use

The paving of outdoor areas, requires the use of materials having the following characteristics:
High mechanical strength (tear, impact and wear).
High durability.
Low water absorption, resistant to frost.
non-slip surface.
Ease of replacement.
design possibilities. Indoor use

interior use requires, essentially, that the face side of the tile is polished. With indoor tiles, are obtained paved surfaces fully polished and buffed, achieving a great beauty.
Depending on the use of the area to be paved, these tiles are manufactured in different strength classes, normal, or heavy industrial, to improve their performance and durability. This floor has an easy maintenance, which is limited to a simple cleaning. After years of demanding service may be subjected to a grinding (grain refined 220) and polished surface, the face side to return to its original state.
An important requirement is the internal uses and non-reactive resistance to fire. The tiles have a strong performance at these two requirements. Also show good behavior slip (wheel) and slip (people).

FEATURES DEFINITION OF GRAIN TERRAZZO TILES of breaking load

Defines the maximum load at which rupture occurs, according to the bending test, direct reading is obtained by calculating the resistance module flexion.
T flexural modulus (MPa)
T = (3 x P x L) / (2 xbx t2)

determines abrasion resistance to abrasion by subjecting the exposed face of tiles to the action of a rotating metal disk 70 mm in width, in the presence of a material abrasive.
footprint is obtained which determines the wear rope material.

The equipment used is a sand blasting machine of Ottawa, which serves as an abrasive material.

water absorption by total absorption
: Determines the total capacity of water absorption of a tile is completely dry, once submerged in water until saturated.

Absorption
face side determines the absorption, suction, face view of a tile, completely dry, partially introduced into water for 24 hours.

impact resistance determines the resistance to drop on the face side of the tiles of a steel ball of 1 kg mass from heights between 400 and 1000 mm, according to NTC rules aplicable.En 350mm. This test can assess the strength of this type of tile to the impact of anything that could fall on them.