Concrete

Concrete is a construction material made with cement, water, sand and stones. This material is strong in compression and weak in tension. Concrete exist since the year 3000 BF, it was invented at Egypt, and after that concrete have be changing by the time. Another important characteristic of concrete is that it is a cheap material. = = =What innovations has concrete brought to architecture? =

Regular concrete was used even in ancient egypt. Then when the romans used it (with volcanic ash)they were able to build domes and vaults. Concrete allows cosntruction with the absence of joints, allows a greater variety of shapes in the buildings, but not as many as if I used reinforced concrete. since reinforced concrete is as strong as steel in tension and it has more structural advantaevges.

=Advantages: =


 * Economical substitute to traditional materials


 * Waterproof fireproof


 * Cheap


 * Strong in compression but weak in tension


 * Molds to any shape

=Disadvantages: =


 * Sudden changes in temperature can make it break


 * Heavy

__Conclusion __

The concrete is a material that has revolutionized the world of construction from its appearance, its mixture of cement, water and some rocks make it one of the materials most resistant to water and fire. The concrete had no real importance until it appeared in the concrete world, which consists of mixing steel bars with concrete, creating a versatile material that competes with the steel frame despite being a slow and expensive, steel reinforcement allows to maximize the characteristics of this material.

Text about Concret = = Definitions:

<span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">Hardens: Endurecer <span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">v. intr.
 * 1) <span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">To make hard or harder.
 * 2) <span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">To enable to withstand physical or mental hardship.
 * 3) <span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">To make unfeeling, unsympathetic, or callous: "To love love and not its meaning hardens the heart in monstrous ways" (Archibald MacLeish).
 * 4) <span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">To make sharp, as in outline.
 * 5) <span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">To protect (nuclear weapons) by surrounding with earth or concrete.
 * 1) <span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">To become hard or harder.
 * 2) <span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">To rise and become stable. Used of prices.
 * 3) <span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">To become inured.

<span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">Stonelike: Pétrea

<span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">adjective (of bone especially the temporal bone) resembling stone in hardness.

<span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">Water-and-fire-resisting: Resistente al fuego y al agua

<span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">Strong enough to resist flames and it is not easily damaged by water.

<span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">Compressive: Compresion <span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">–adjective <span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">compressing; tending to compress. <span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">Serving to or able to compress. <span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">Compressing, or having power or tendency to compress; as, a compressive force.

<span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">Tensile strength: Resistencia a la Traccion <span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">It is strong in tension

<span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">Poured: Vertido <span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">v. poured, pour·ing, pours


 * 1) <span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">To make (a liquid or granular solid) stream or flow, as from a container.
 * 2) <span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">To send forth, produce, express, or utter copiously, as if in a stream or flood: poured money into the project; poured out my inner thoughts.

<span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">v. intr.
 * 1) <span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">To stream or flow continuously or profusely.
 * 2) <span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">To rain hard or heavily.
 * 3) <span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">To pass or proceed in large numbers or quantity: Students poured into the auditorium.
 * 4) <span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">To serve a beverage, such as tea or coffee, to a gathering: We need someone to pour.

<span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">n. A pouring or flowing forth, especially a downpour of rain.

<span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">Fusing: Fusion <span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">fusetransitive verb1: to reduce to a liquid or plastic state by heat <span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">2: to blend thoroughly by or as if by melting together : combine <span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">3: to stitch by applying heat and pressure with or without the use of an adhesiveintransitive verb1 a: to become fluid with heat bBritish : to fail because of the blowing of a fuse2: to become blended or joined by or as if by melting together

<span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">Volcanic-ash: Ceniza Volcanica <span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">Volcanic ash consists of small tephra, which are bits of pulverized rock and glass created by volcanic eruptions,less than 2 millimetres (0.079 in) in diameter. There are three mechanisms of volcanic ash formation: gas release under decompression causing magmatic eruptions; thermal contraction from chilling on contact with water causing phreatomagmatic eruptions and ejection of entrained particles during steam eruptions causing phreatic eruptions. The violent nature of volcanic eruptions involving steam results in the magma and solid rock surrounding the vent being torn into particles of clay to sandglobal cooling. size. Volcanic ash can lead to breathing problems, malfunctions in machinery, and from more severe eruptions, years of <span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">Ash deposited on the ground after an eruption is known as ashfall deposit. Significant accumulations of ashfall can lead to the immediate destruction of most of the local ecosystem, as well the collapse of roofs on man-made structures. Over time, ashfall can lead to the creation of fertile soils. Ashfall can also become cemented together to form a solid rock called tugg Over geologic time, the ejection of large quantities of ash can produce an ash cone.

<span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">B**rick ribbing: Nervaduras de ladrillos** <span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">Ribs considered as a group.2. An arrangement of ribs, as in a boat.3. Informal The act or an instance of joking or teasing.

<span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">Sewerage: Alcantarillado <span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">n.1. A system of sewers.2. Removal of waste materials by means of a sewer system.3. Sewage.

<span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">Water-proofing: A prueba de agua

<span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">Waterproof or water-resistant describes objects unaffected by water or resisting water passage, or which are covered with a material that resists or does not allow water passage. Such items may be used in wet environments or under water. Waterproofing describes making an object waterproof or water-resistant.

<span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">Pipes: Tuberia <span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">n.1. a. A hollow cylinder or tube used to conduct a liquid, gas, or finely divided solid.b. A section or piece of such a tube.2. a. A device for smoking, consisting of a tube of wood, clay, or other material with a small bowl at one end.b. An amount of smoking material, such as tobacco, needed to fill the bowl of a pipe; a pipeful.3. Informala. A tubular part or organ of the body.b. pipes The passages of the human respiratory system.4. Abbr. p.a. A wine cask having a capacity of 126 gallons or 2 hogsheads (478 liters).b. This volume as a unit of liquid measure.5. Musica. A tubular wind instrument, such as a flute.b. Any of the tubes in an organ.c. pipes A small wind instrument, consisting of tubes of different lengths bound together.d. pipes A bagpipe.6. pipes Informal The vocal cords; the voice, especially as used in singing.7. A birdcall.8. Nautical A whistle used for signaling crew members: a boatswain's pipe.9. Geologya. A vertical cylindrical vein of ore.b. One of the vertical veins of eruptive origin in which diamonds are found in South Africa.10. Geology An eruptive passageway opening into the crater of a volcano.11. Metallurgy A cone-shaped cavity in a steel ingot, formed during cooling by escaping gases.

<span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">Mesh: Malla <span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">n.1. a. Any of the open spaces in a net or network; an interstice.b. The cords, threads, or wires surrounding these spaces. Often used in the plural.2. An openwork fabric or structure; a net or network: a screen made of wire mesh.3. Something that snares or entraps. Often used in the plural: "Arabia had become entangled in the meshes of . . . politics" W. Montgomery Watt.4. a. The engagement of gear teeth.b. The state of being so engaged: gear teeth in mesh.

<span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">Limitless: Sin limites <span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">adj. <span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">Having no limit or limits; unrestricted: limitless authority; the limitless reaches of outer space.

<span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">Stresses: Haciendo incapie <span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">tr.v. stressed, stress·ing, stress·es1. To place emphasis on: stressed basic fire safety.2. To give prominence to (a syllable or word) in pronouncing or in accordance with a metrical pattern.3. To subject to physical or mental pressure, tension, or strain.4. To subject to mechanical pressure or force.5. To construct so as to withstand a specified stress.

<span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">Slabs: Losas <span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">n.1. A broad, flat, thick piece, as of stone or cheese.2. An outside piece cut from a log when squaring it for lumber.3. Baseball The pitcher's rubber.tr.v. slabbed, slab·bing, slabs1. To make or shape into slabs or a slab.2. To cover or pave with slabs.3. To dress (a log) by cutting slabs.

<span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">Deck: Cubierta <span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">n. <span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">1. A platform extending horizontally from one side of a ship to the other.2. a. A platform or surface likened to a ship's deck.b. A roofless, floored structure, typically with a railing, that adjoins a house.c. The roadway of a bridge or an elevated freeway.3. a. A pack of playing cards.b. A group of data processing cards.4. A tape deck. <span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">5. Slang A packet of narcotics

<span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">Spring: Primavera <span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">sprung, spring·ing, springsv.intr.1. To move upward or forward in a single quick motion or a series of such motions; leap.2. To move suddenly on or as if on a spring: The door sprang shut. The emergency room team sprang into action.3. To appear or come into being quickly: New businesses were springing up rapidly. See Synonyms at stem1.4. To issue or emerge suddenly: A cry sprang from her lips. A thought springs to mind.5. To extend or curve upward, as an arch.6. To arise from a source; develop.7. To become warped, split, or cracked. Used of wood.8. To move out of place; come loose, as parts of a mechanism.9. Slang To pay another's expenses: He offered to spring for the dinner.v.tr.1. To cause to leap, dart, or come forth suddenly.2. To jump over; vault.3.To release from a checked or inoperative position; actuate: spring a trap.4. a. To cause to warp, split, or crack, as a mast.b. To bend by force.5. To present or disclose unexpectedly or suddenly: "He sprung on the world this novel approach to political journalism" Curtis Wilkie.6. Slang To cause to be released from prison or other confinement.n.1. An elastic device, such as a coil of wire, that regains its original shape after being compressed or extended.2. An actuating force or factor; a motive.3. a. Elasticity; resilience.b. Energetic bounce:a spring to one's step.4. The act or an instance of jumping or leaping.5. A usually rapid return to normal shape after removal of stress; recoil.6. A small stream of water flowing naturally from the earth.7. A source, origin, or beginning.8. a. The season of the year, occurring between winter and summer, during which the weather becomes warmer and plants revive, extending in the Northern Hemisphere from the vernal equinox to the summer solstice and popularly considered to comprise March, April, and May.b. A time of growth and renewal.9. A warping, bending, or cracking, as that caused by excessive force.10. Architecture The point at which an arch or vault rises from its support.adj.1. Of or acting like a spring; resilient.2. Having or supported by springs: a spring mattress.3. a. Of, relating to, occurring in, or appropriate to the season of spring: spring showers; spring planting.b. Grown during the season of spring: spring crops.

<span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">Concrete: Is a manufactured mixture of cement and water, with aggregates of sand and stones, which hardens rapidly by chemical combination to a stonelike, water-and-fire-resisting solid of great compressive but low tensile strength.

<span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">Reinforced concrete: Was developed to add the tensile strength of steel to the compressive strength of mass concrete. The combination is much more versatile than either product; it serves not only for constructing rigid frames but also for foundations, columns, walls, floors, and a limitless variety of coverings, and it does not require the addition of other structural materials. <span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">

<span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">Concrete-shell construction: <span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">

<span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">Hyperbolic paraboloid for church in Boulder Colorado <span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">This structure is unique in that the longitudinal central ridge is lower than the peak of the arches. This construction view shows the steel ties to connect the springs of the triangular arches that will subsequently be concealed by the colored glass brick filler walls. The concrete on the steep slopes was placed by the shotcrete method.

<span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">

<span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">Barrel Shell for Bakery <span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">This roof system has multiple bays in each direction. A unit is composed of two circular elements as shown. The shell was formed with a fixed form at the small circle at the columns and a movable form for the large circle. There are no horizontal ties at the columns. Shells are ideal for bakeries because of the hard surfaces and few horizontal surfaces to catch dust.

<span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">

<span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">Folded plate roof for gymnasium and cafeteria <span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">There are windows between the tilted Z shaped elements to provide overhead natural light. There are two spans of about 50 and 60 ft. The supports at the ends of the elements are arranged to make it appear that the roof floats on its supports. The shell thickness is three inches.

<span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">

<span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">Hyperbolic Paraboloid Roof for Entertainment Center <span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">This roof in this construction picture is about 185 ft. square, and is supported on steel tripod elements. In plan, the structure is not square but has eight sides, so the length of the top rib is roughly the same length as the sloping side ribs. This is to avoid the box like roof of a square roof plan. The structural ribs, however, are on square plan. The roof thickness is 3 inches, except for the ribs.

<span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">

<span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">Barrel shell for small office <span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">This structure has a clear span of 40 feet with large windows for north light on work surfaces. The upturned shell at the entrance is supported at the middle by columns so it does not have to span the entire 40 feet, and can be made smaller. The projections of the shell beyond the walls do not have any roofing to show that the thickness of the shell is small.

<span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">Precast-concrete construction: <span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">

<span style="color: #ae975b; display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%; text-align: justify;">Prestressed concrete:



=<span style="color: #ae975b; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%;">What is the difference between tiltwall construction, tilt-up panel construction and pre-cast concrete construction? =

<span style="color: #ae975b; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 140%;">These different working techniques are employed in concrete depending on working conditions in a building, weather tiltwall promotes a good process is not required since the transport of concrete panels but this is a method where the panels concrete is made ​​at the time the weather can be a factor preventing the termination of the project, otherwise the tilt-up is a good method when weather conditions are unfavorable as this concrete form panels are manufactured part and cured, so they are transported to the building when they are ready. In different ways the concrete is an excellent material used in different ways helps architects to perform great works without putting limits to the imagination.