Saturday, June 9, 2012

Advantages of Ready Mix Concrete

Mastour Ready Mix is a well-established and market leading ready mix concrete producer in Kingdom of Saudi Arabia

The ready mix concrete has many advantages compared to the traditional way in producing concrete, these advantages are:
• Accuracy of mix concrete and calibration of the components.
• Accuracy of controlling the quality of the components (cement, aggregates, water and additives).
• Superiority of the mixing process quality due to the absence of the human error.
• Accuracy and the centrality of quality control operations.
• Avoidance of the burden of storing raw materials in site whiles the production of concrete.
• Avoidance of losing the required quality of raw materials due to poor setting and storing or due to weathering.
• Reduction of the labor required for the work of mixing and pouring.
• Easiness of pumping concrete in high-rise.
• Easiness of concrete surface serving & leveling.
• Reduction and time saving of site works duration.
• Reduction of waste of raw materials resulting from poor concrete mixing workmanship and poor setting and storing.

Thursday, June 7, 2012

Concrete Barrier

Mastour ReadyMix is a Ready mix concrete and cement products company Jeddah Saudi Arabia,


Modular Concrete Barrier employed to separate lanes of traffic. It is designed to minimize vehicle damage in cases of incidental contact while still preventing crossover in the case of head-on accidents.
Also utilized extensively to re-route traffic and protect pedestrians during highway construction, such barriers are increasingly deployed in anti-terrorism roles as both quick fixes and semi-permanent protections against perceived land borne threats.
Their widespread use in road construction has led to wide application as a generic, portable barrier during general construction projects and temporary re-routing of traffic into stopgap carpool and rush hour reversing highway lanes.
Our concrete barriers are available in different sizes . They are ideal for many uses including; temporary roadblocks, protecting vacant sites, Bridge Approaches and Railings, Highway hazards such curve, perimeter fencing, channeling traffic, concrete security blocks and earth retention. Our concrete barriers can be painted with warning signs, company branding, or logos.

Wednesday, June 6, 2012

Cement


Mastour ReadyMix is a Ready mix concrete and cement products company Jeddah Saudi Arabia


In the most general sense of the word, a cement is a binder, a substance that sets and hardens independently, and can bind other materials together. modern concrete that was made from crushed rock with burnt lime as binder. The volcanic ash and pulverized brick additives that were added to the burnt lime to obtain a hydraulic binder .
Cement used in construction is characterized as hydraulic or non-hydraulic. Hydraulic cements (e.g., Portland cement) harden because of hydration, chemical reactions that occur independently of the mixture’s water content; they can harden even underwater or when constantly exposed to wet weather. The chemical reaction that results when the anhydrous cement powder is mixed with water produces hydrates that are not water-soluble. Non-hydraulic cements (e.g. gypsum plaster) must be kept dry in order to retain their strength.
The most important use of cement is the production of mortar and concrete—the bonding of natural or artificial aggregates to form a strong building material that is durable in the face of normal environmental effects.
Concrete should not be confused with cement, because the term cement refers to the material used to bind the aggregate materials of concrete. Concrete is a combination of a cement and aggregate.

Tuesday, June 5, 2012

Concrete mixer


Mastour Ready Mix is one of the major companies operating in the field of construction and reconstruction depends in its work

A concrete mixer (also commonly called a cement mixer) is a device that homogeneously combines cement, aggregate such as sand or gravel, and water to form concrete. A typical concrete mixer uses a revolving drum to mix the components. For smaller volume works portable concrete mixers are often used so that the concrete can be made at the construction site, giving the workers ample time to use the concrete before it hardens. An alternative to a machine is mixing concrete or cement by hand. This is usually done in a wheelbarrow; however, several companies have recently begun to sell modified tarps for this purpose.
Industrial Mixers
Today’s market increasingly requires consistent homogeneity and short mixing times for the industrial production of ready-mix concrete, and more so for precast concrete. This has resulted in refinement of mixing technologies for concrete production. Different styles of stationary mixers have been developed, each with its own inherent strengths targeting different parts of the concrete production market. The most common mixers used today fall into 3 categories: Twin-shaft mixers, Vertical axis mixers

Monday, June 4, 2012

Stamped Concrete


Stamped Concrete Products in various patterns are also available at Mastour ReadyMix can be customized and proportioned to fit your specific needs and application.
Stamped Concrete is concrete that is patterned and/or textured or embossed to resemble brick, slate, flagstone, stone, tile, wood, and various other patterns and textures. Stamped concrete is commonly used for patios, sidewalks, driveways, pool decks, and interior flooring. The ability of stamped concrete to resemble other building materials makes stamped concrete a less expensive alternative to using those other authentic materials such as stone, slate or brick.
There are three procedures used in stamped concrete which separate it from other concrete procedures; the addition of a base color, the addition of an accent color, and stamping a pattern into the concrete. These three procedures provide stamped concrete with a color and shape similar to the natural building material. It also is longer lasting than paved stone, and still resembles the look.

Procedures

Adding base color

The base color is the primary color used in stamped concrete. The base color is chosen to reflect the color of the natural building material. The base color is produced by adding a color hardener to the concrete. Color hardener is a powder pigment used to dye the concrete.
The color hardener can be applied using one of two procedures; integral color or cast-on color. Integral color is the procedure where the entire volume of concrete is dyed the base color. The entire volume of concrete is colored by adding the color hardener to the concrete truck, and allowing all the concrete in the truck to be dyed. Cast-on color is the procedure where the surface of the concrete is dyed the base color. The surface of the concrete is colored by spreading the color hardener onto the surface of the wet concrete and floating the powder into the top layer of the wet concrete.
Concrete can be colored in many ways; color hardener, integral liquid or powder, acid stains to name a few. The process of integrally coloring the concrete offers the advantage of the entire volume being colored; however, the surface strength is not increased as with the use of color hardener. Dry shake color hardener is another popular way to color concrete. You broadcast the hardener on the concrete as soon as it is floated for the first time. After letting the bleed water soak into the hardener you float and trowel it in. This method only covers the surface about 3/16 of an inch but it gives the concrete surface a longer wear life.

Adding accent color

The accent color is the secondary color used in stamped concrete. The secondary color is used to produce texture and show additional building materials (e.g. grout) in the stamped concrete. The accent color is produced by applying color release to the concrete. Color release has two purposes. Color release is a pigment used to color the concrete and color release is a non-adhesive used to prevent the concrete stamps from sticking to the concrete.
The color release can be applied in one of two procedures based on the two forms it is manufactured in: powdered (cast-on color release made up of calcium-releasing powders that repel water); or liquid – which is a light aromatic-based solvent, spray-on color release. Cast-on color release is a procedure where the powder color release is applied by spreading the color release on the surface of the concrete before the concrete is stamped. Spray-on color release is a procedure where liquid color release is sprayed on the bottom of the concrete stamps before the concrete is stamped.

Stamping patterns

The pattern is the shape of the surface of the stamped concrete. The pattern reflects the shape of the natural building material. The pattern is made by imprinting the concrete shortly after it has been poured with a “concrete stamp“. Most modern concrete stamps are made of polyurethane, but older “cookie cutter” style stamps were made of various metals. The old style stamps lacked the capabilities of forming natural stone texture.
Concrete stamping is the procedure which uses the concrete stamps to make the pattern in the stamped concrete. Concrete stamps are placed on the concrete after the color release has been applied. The concrete stamps are pushed into the concrete and then removed to leave the pattern in the stamped concrete.
In most cases concrete stamping is made to look like ordinary building products. Whether it be flagstone, brick, natural stone or any other common exterior looks, but there are many ways to personalize your own kind of stamp. It could be a homemade stamp or a recycled stamp, you can be as basic or as ornate as you wish. The Process is easy, first find a design that you, the homeowner, or contractor thinks will be a good fit. After making a mold of the desired stamp design, plan out the way it will look and fit in your designated area. The hardest part of stamping is the waiting, you must make sure the concrete is hard enough that the stamp won’t sink but loose enough that it will make a clean stamp. Do not be afraid of trying new and creative stamps around your house. However, remember to be sure to test the stamp on a demo before stamping onto the permanent surface.

History

Stamping concrete increased in popularity in the 1970s when it was first introduced in the World of Concrete. Builders saw it as a new way to satisfy the customer and make their budget work simultaneously. This technique of stamping concrete has been done since at least the 1950s. When stamping concrete first began, there were very few choices of design and colors. However, as the industry grew more stamping patterns were being created along with many different types of stains to give us the vibrant colors we have today. Another advantage to using stamped concrete, is that it can be applied to many different surfaces and textures. Such as driveways, highways, patios, decks, and even floors inside the home.

Sunday, June 3, 2012

Building with Concrete


Mastour ReadyMix is one of the largest concrete manufacturing companies located in the Kingdom of Saudi Arabia with ready mix concrete and cement plants in Jedda saudi Arabia, Khamis Mushayt Saudi Arabia, Abha Saudi Arabia, Dammam Saudi Arabia,

Concrete is one of the most durable building materials. It provides superior fire resistance, compared with wooden construction and can gain strength over time. Structures made of concrete can have a long service life. Concrete is the most widely used construction material in the world with annual consumption estimated at between 21 and 31 billion tones.
Concrete is used more than any other man-made material in the world. As of 2006, about 7.5 billion cubic meters of concrete are made each year—more than one cubic meter for every person on Earth.
Energy efficiency
Energy requirements for transportation of concrete are low because it is produced locally from local resources, typically manufactured within 100 kilometers of the job site. Similarly, relatively little energy is used in producing and combining the raw materials (although large amounts of CO2 are produced by the chemical reactions in cement manufacture). The overall embodied energy of concrete is therefore lower than for most structural materials other than wood.
Once in place, concrete offers significant energy efficiency over the lifetime of a building. Concrete walls leak air far less than those made of wood-frames. Air leakage accounts for a large percentage of energy loss from a home.
Pervious concrete
Pervious concrete is a mix of specially graded coarse aggregate, cement, water and little-to-no fine aggregates. This concrete is also known as “no-fines” or porous concrete. Mixing the ingredients in a carefully controlled process creates a paste that coats and bonds the aggregate particles. The hardened concrete contains interconnected air voids totaling approximately 15 to 25 percent. Water runs through the voids in the pavement to the soil underneath. Air entrainment admixtures are often used in freeze-thaw climates to minimize the possibility of frost damage.
Fire safety
Concrete buildings are more resistant to fire than those constructed using wood or steel frames, since concrete does not burn. Concrete reduces the risk of structural collapse and is an effective fire shield, providing safe means of escape for occupants and protection for fire fighters.
Options for non-combustible construction include floors, ceilings and roofs made of cast-in-place and hollow-core precast concrete. For walls, concrete masonry technology and Insulating Concrete Forms (ICFs) are additional options. ICFs are hollow blocks or panels made of fire-proof insulating foam that are stacked to form the shape of the walls of a building and then filled with reinforced concrete to create the structure.
Concrete also provides the best resistance of any building material to high winds, hurricanes, tornadoes due to its lateral stiffness that results in minimal horizontal movement.
Earthquake safety
As discussed above, concrete is very strong in compression, but weak in tension. Larger earthquakes can generate very large shear loads on structures. These shear loads subject the structure to both tension and compression loads. Concrete structures without reinforcing, like other unreinforced masonry structures, can fail during severe earthquake shaking. Unreinforced masonry structures constitute one of the largest earthquake risks globally. These risks can be reduced through seismic retrofitting of at-risk buildings.

Saturday, June 2, 2012

Concrete


Mastour ReadyMix provides its customers with high-quality branded Ready mix concrete and cement products for their construction needs

The word Concrete comes from the Latin word “concretus” (meaning compact or condensed), the perfect passive participle of “concrescere”, from “con-” (together) and “crescere” (to grow).
Concrete was used for construction in many ancient structures.
Concrete is a composite construction material composed primarily of aggregate, cement and water. There are many formulations that have varied properties. The aggregate is generally a coarse gravel or crushed rocks such as limestone, or granite, along with a fine aggregate such as sand. The cement, commonly Portland cement, and other cementitious materials such as fly ash and slag cement, serve as a binder for the aggregate. Various chemical admixtures are also added to achieve varied properties. Water is then mixed with this dry composite which enables it to be shaped (typically poured) and then solidified and hardened into rock-hard strength through a chemical process known as hydration. The water reacts with the cement which bonds the other components together, eventually creating a robust stone-like material. Concrete has relatively high compressive strength, but much lower tensile strength. For this reason is usually reinforced with materials that are strong in tension (often steel). Concrete can be damaged by many processes, such as the freezing of trapped water.
Concrete is widely used for making architectural structures, foundations, brick/block walls, pavements, bridges/overpasses, motorways/roads, runways, parking structures, dams, pools/reservoirs, pipes, footings for gates, fences and poles and even boats. Famous concrete structures include the Burj Khalifa (world’s tallest building).
Use of concrete became scarce until the technology was re-pioneered in the mid-18th century.
The environmental impact of concrete is a complex mixture of not entirely negative effects; while concrete is a major contributor to greenhouse gas emissions, recycling of concrete is increasingly common in structures that have reached the end of their life. Structures made of concrete can have a long service life. As concrete has a high thermal mass and very low permeability, it can make for energy efficient housing.