Material Testing and Quality Control Department

Ready Mix and Concrete Quality Testing

At Mastour Ready Mix, we understand that our concrete and cement products, are the most unique and versatile building materials in the world/gulf/saudi. It can assume virtually any shape and reach great strengths. Concrete is ideal for any building project such as residential homes, schools, high-rise buildings, bridges, dams, highways etc. Concrete is perishable in its plastic state and very “sensitive” from the time the raw materials are combined to the final product. Mixing, transportation, placing, and curing can influence its plastic and hardened properties. This is why Mastou Ready Mix places great emphasis on quality by expanding the parameters of its concrete quality management model from quality control to quality assurance. Mastou Ready Mix is leading the way to higher quality practices with the implementation of a Quality Management System based on the guidelines and principles

Laboratory materials

Different quality tests for Ready mix concrete depending on the time of testing

Tests done before delivery: – such as the test (SLUMP TEST) by which the test in coherence of concrete mix where to take a sample from the truck before delivery and is measured by the degree of decline in concrete as shown in Figure.

Tests after the mortar : – After the arrival of concrete to the delivery location, sample was being made to make sure that it in in compliance with the specifications required by client from 15mpa to 100mpa. , According to American standards – British – Saudi Arabia, as well as the American Concrete Institute through cubes or cylinders which are cured and will be tested after 7 days and 28 days, as I have a company mobile laboratory, issued full reports and statistical analysis to verify the specifications and mix design already installed, also verify the quality of the concrete at the site after 7 days and 28 days through a variety of tests conducted at the site and mention some of them for example.
*Hammer Test.
*Test section (coring Test)

Raw materials used

The company produce ready-mixed concrete on the best materials available.

Cement

*OPC Portland cement according to the specifications of America.
*Sulfate Resistant Cement is resistant to the attack of salts, according to the specifications of America.
*Pozollan Portland Cement by American standards.

Graded gravel

basalt rock is extracted harsh clean by bombing and that is crack by refracting a primary and secondary cracking Assistant (mill) then Separation of materials through Screen multiple production in different sizes (3/8”, ¾”, ½”.1” ) by

American standards.

Sand : – Sand mechanically screened to produce clean sand and free from silt, shall be subject to laboratory tests to ensure its compliance Specifications for the U.S. A .

Additional materials

Based on the effort required by the client and the mix design that is prepared in our laboratories, some of which require addition of chemical, and to mention some of them: – .Colored concrete floor for the addition of chemical dyes, iron oxide and (IRON OXIDE) in different colors Use (MICROSILICA) and that of the tanks, swimming pools, concrete, marine and that what is known

(Water Proof)
Article RETARDER) so as to delay the setting time of the concrete.
Article SUPERPLASTICIZER add this article on the effort required from the client.
Materials parallel STABILIZER.
Article ( HIGH RANGE WATER REDUCER) .
Material added to the concrete used in the sea (CORROSION INHIBITOR )

There are also special specifications and special chemicals for concrete fiber and heavy weight concrete .

cooling system

company has a cooling system consists of chiller to cool the water to 8 degrees Celsius, ice plant is also available at the company’s plant, covers factory production of ready-mixed concrete to reduce the temperature of the concrete, especially during hot weather. (summer).

Water purification plants

The company has plants and water purification device examining the ratio of salts (TDS ) Where the water purification process and to ensure compliance with the U.S.A standards, is an important factor to achieve the highest quality of concrete.

Technical recommendations

Should follow the recommendations of engineering during the casting: –

• On the client, to make every effort to unload the concrete from the truck mixer as soon as possible, in terms of time factor is very important for the quality of concrete.
• During the concrete pouring, especially in columns, ceilings and cabinets recommends using vibrators to avoid honeycomb and to removed air voids to maintain the concrete quality and shape.
• We recommend using good wood, especially for the columns in order to maintain the quality of the concrete and shape.
• We recommend that the request for additional water to the mixture at site is prohibited, any additional water at site adversely affect the quality of concrete.

Recommendations of the ready-mixed concrete after casting :- Moisture must be maintained during the process of curing of concrete after casting so as not to loss moisture rapidly as the rapid loss of moisture during hardening will result in no doubt surface cracks. We recommend treatment with wet burlap or work pools of water with sand barriers to keep the water as long as possible.

Concrete recommendations to address backlog of doubt :- We recommend that you keep the surface moist at all times and can be delayed doubt concrete for several hours and that was the result of the chemical additives for concrete, which in turn delayed doubt concrete for several hours. We recommend that you deal with concrete containing Microsilica

How to Order

To learn more about Mastour ReadyMix or to place your order, Please do feel free to Contact Us

Concrete Block

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

Concrete block, cement block, and foundation block – is a large rectangular brick used in construction. Concrete blocks are made from cast concrete, i.e. Portland cement and aggregate, usually sand and fine gravel for high-density blocks. Lower density blocks may use industrial wastes as an aggregate. Clinker blocks use clinker as aggregate. In non-technical usage, the terms cinder block and breeze block are often generalized to cover all of these varieties. Lightweight blocks can also be produced using aerated concrete

Uses

Concrete block, when built in tandem with concrete columns and tie beams and reinforced with rebar, is a very common building material for the load-bearing walls of buildings, in what is termed “concrete block structure” construction. Large buildings typically use copious amounts of concrete block; for even larger buildings, concrete block supplements steel I-beams. Tilt-wall construction, however, is replacing Concrete Block Structure for some large structures.

Parking Stoppers

Mastour Ready Mix provides its customers with high-quality branded cement products for their construction needs

A parking space commonly contains a parking Stoppers, a barrier which is used to prevent cars from pulling too far into the space and obstructing a neighboring parking space, curb, or sidewalk.

This barrier, also called a Parking Stoppers, is usually made of concrete  and will normally be a horizontal bar to stop the tires from moving forward or a vertical bar that may cause damage to the vehicle if contact is made. In a parking garage, the barrier will often be a concrete wall.

All of our Parking Stoppers have a smooth form finish. The stops are vibrated as they are cast to provide good consolidation of the concrete which increases durability and improves their appearance. Holes are formed through the tops of the curbs at each end of the piece so that a ½” thick piece of rebar can be inserted for anchoring to asphalt or concrete surfaces. You can be sure that when you buy from us, you are buying a strong, durable product that you deserve. Don’t spend good money on cheap imitation parking stoppers, put your hard earned money in a quality product.

More information’s about ready mix concrete Products ,Services, Contact Us

Using Ready Mix Concrete in Construction

Mastou Ready Mix, we understand that our ready mix concrete and cement products, are the most unique and versatile building materials.

Building a house or any other type of building is not easy, especially when you do it from scratch. However, there are some shortcuts you can use when you want to shorten the building time and have your project ready in time. One of them involves the use of ready-mix concrete. This is a type of concrete that is manufactured in a factory or batching plant, according to a set recipe, and then delivered to a work site, by truck mounted transit mixers. The result is a precise mixture, allowing specialty concrete mixtures to be developed and implemented on construction sites. Of course, there are some advantages that this type of concrete offers

We were able to say that this was the most commonly used form of concrete. One of the most important advantages when using ready-mix concrete is the fact that you get to save time. As you probably know, time is usually the most important resource. Using ready-mix concrete speeds up the entire process.

Another advantage of using ready-made concrete is the high-quality of the concrete. Ready-mix concrete is consistently of a higher quality than concrete mixed on site. In other words, you’ll get high-quality concrete and you’ll save time and man power at the same time. Just to help you get an idea, you should know that mixing plants use natural ingredients and the standard recipes call for 10 percent to 15 percent cement, which is made up of clay, limestone, sand or shale; about 60 percent to 70 per cent aggregates, typically rock and gravel; and 20 per cent water.

The use of ready-mix concrete also reduces pollution outputs from construction sites, such as the dust created when mixing concrete on site and the possibility of unnecessary wastage due to making more than you need. Although ready-mix concrete requires special care and precautions during casting otherwise it could cause cracks and failure. More information’s about ready mix concrete Products and Services.

Hidden benefits of Ready Mix Concrete

Mastour ReadyMix is one of the most efficient ready-mix concrete producers in the K.S.A.

Ready mix concrete is generally looked upon as a costly product rather than as a facility for an appropriate quality product on site as and when required. Ready Mix Concrete is considered to be more expensive compared to site mixed concrete. The initial cost of Ready Mix Concrete may seem higher. However, Ready Mix Concrete has several hidden advantages that can substantially reduce cost to the owner. And since these cannot be accurately determined, they are often ignored while evaluating the cost of RMC over site mixed/produced concrete.
The advantages over the site-mixed concrete are–the quality of concrete will be superior over the site-mixed concrete. However, it will greatly depend on the controls and checks exercised at site and at Ready Mix Concrete producer’s plant. The considerable wastage of materials on site due to poor storage conditions and repeated shifting of the mixer location is prevented.
In most cities, the plot area is barely sufficient to store reinforcement steel, concrete and other construction materials. Using Ready Mix Concrete can cause less congestion and better housekeeping on the site resulting in efficient working environment. Obtaining Ready Mix Concrete at site can reduce supervision and labor costs, which would otherwise be required for batching and mixing of concrete at site.
The modern RMC plants have an automatic arrangement to measure surface moisture on aggregates. This greatly helps in controlling the water to cement ratio (w/c), which results in correct strength and durability. Due to automation process the control and check can be emphasized at each and every stage of RMC manufacturing and thus ensuring better and consistent quality batch after batch. RMC encourages mechanization and promotes the use of new materials like micro silica and fibers that can be safely used in ready mix concrete, which in conventional concrete may pose problems

Precast Concrete Floors

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

The vast majority of new homes have solid concrete ground floors. This is excellent from the point of view of sound

reduction. However, upstairs floors are probably the greatest single source of noise in homes. With many homeowners

moving   away  from carpet finishes   to    timber   floors ,   t h e  problem has increased significantly. Impact noise through timber floors can be a significant source of irritation, especially

when children are playing with friends in their bedroom. Tests show the airborne sound insulation of a concrete floor to be in the order of 47 to 52 decibels. A standard timber joist floor in

a comparative test has a rating of only 30 to 38 decibels. The substantial performance difference has encouraged many self builders to use precast concrete first floors. Those who do will enjoy the comfort of a quieter, safer home.

Tests have shown the airborne sound insulation of a concrete upstairs floor to be in the order of 47to 52 decibels. A

standard timber floor in a comparative test has a rating of 30 to 38 decibels.

Fire Safe Concrete

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

The safety of your family is a primary consideration when purchasing a new home. Concrete homes have a much higher level of fire safety than lightweight framed homes, with 4 times longer fire resistance – effectively 2 hours protection compared with 30 minutes for lightweight timber of steel frame construction.

Concrete is an incombustible material and it will not produce smoke or in any way add to the fire. Fires which occur in
concrete built homes will burn at a lower temperature, the house will retain its structural stability and the structure of the building will almost always remain completely intact.

The same cannot be said of lightweight framed homes, where the structural elements become part of the fire, produce higher temperatures and higher smoke levels and the building is frequently completely destroyed, requiring demolition. If you are buying an apartment which is built using lightweight framed construction – check the cost of the insurance premium. Some leading Irish Insurers will not ensure lightweight framed buildings above two storeys in height

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.

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.

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.
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