Concrete accelerator MTOCRETE S-123 Clinic Beton Iran

MTOCRETE S-123 is a quick-setting concrete additive with strong performance and free of alkali substances, which is used for concrete spraying operations. This product is available in liquid form and its consumption varies according to the required setting and hardening times. Strong non-alkaline quick-set concrete liquid for wet concrete spraying.
MTOCRETE S-123
Alkali-free, liquid high performance set
Accelerator for wet-mix sprayed conc
Based on ASTM C-494 Type B, C and G standard
BS 5075 part 1

Applications of MTOCRETE S-123 concrete quick-setting additive

MTOCRETE S-123 quick-setting additive is used wherever high initial strength, good final strength and the implementation of thick layers are needed, such as:

• Temporary or permanent maintenance in tunnels
• Stabilization of rocks in mines
• Excavating weak and loose soils
• stabilization of inclined surfacesIt is also used for precipitating the slurry used in drilling with TBM or injecting cement and concrete slurry to fill the back of concrete structures.

Benefits of MTOCRETE S-123 concrete quick setting additive:

MTOCRETE S-123 concrete quick-setting admixture is ideal for wet concrete spraying for rock stabilization because its quick-setting property enables:

• The work process has been accelerated and it is possible to apply thick layers of sprayed concrete at each execution stage.
• Its unique production formula provides the possibility of obtaining short-term, long-term strength and durability of concrete.
• MTOCRETE S-123 concrete accelerator is a liquid product, so it is easy to transport, and measuring devices and adding it to concrete are accurate.
• There is less dust, so the work environment is cleaner.
• Because this product is not harmful, the safety of the work environment increases. Work pressure and transportation costs are reduced.

MTOCRETE S-123 concrete quick setting additive packaging:

MTOCRETE S-123 quick setting concrete additive is available in 25 kg gallons, 285 kg barrels and 1100 kg tankers.

Features and characteristics of MTOCRETE S-123 concrete quick-setting additive

• Form: thick liquid
• Beige
• Specific gravity at 20°C: 1.43 g/ml
• Acid number (1 to 1 solution with water): 2.1 to 3.1
• Chloride content: less than 0.1%

The method of using MTOCRETE S-123 quick-setting concrete additive:

1. The working surface should be clean and free of loose pieces, and it is better to be slightly moist. It is recommended to use fresh cement because old cement has negative effects on the concrete mix.
2. MTOCRETE S-123 quick setting additive is sensitive to the type of cement. With some cements, the coordinates are very slow. It is recommended to use Portland cement, which usually sets faster than combined and anti-sulfate cements.
3. However, MTOCRETE S-123 concrete quick setting admixture works well with cements mixed with fly ash and slag. In all cases, it is strongly recommended to conduct preliminary tests to control setting time and 24-hour resistance with the cement used in the plan.
4. Evaluation of setting time and 24-hour resistance (without adding hydration control liquid) should be done with the help of test mortar and according to the EEFNARC European regulations for concrete spraying, Appendix 1, Article 6.3.

Note: 24-hour resistance is desirable as long as the drying time is short.

Performance of MTOCRETE S-123 concrete early setting additive

In the wet spraying concrete mixing plan, MTOCRETE S-123 quick-setting concrete additive is used. The ratio of water to cement (all cement materials) should be less than 0.5 and preferably less than 0.45. If the goal of premature resistance is very high, it is better to consider the ratio of water to cement 0.4 or less. The lower the ratio of water to cement, the faster it sets. Less primer is used and thicker layers can be applied on the roof.

The amount of MTOCRETE S-123 concrete early setting additive

MTOCRETE S-123 is added at the nozzle head. To ensure accurate and uniform consumption and to ensure the quality of sprayed concrete, use the following guide to choose the right pump. Works well with the following devices:

• Internal non-piston pump
• pressure pump
• Metering pump

Do not work with this tool:

• Piston pump
• All pumps with balls and valves
• Gear pump
• Do not install a filter in the suction pipe because it will cause blockage. It is better to suck the material from the bottom of the barrel

MTOCRETE S-123 quick-setting concrete compounds with other additives:

MTOCRETE S-123 concrete accelerator additive can be used simultaneously with non-alkaline accelerators, but they should not be kept mixed. Note that this product should never be mixed with other quick-release agents.

The amount of MTOCRETE S-123 concrete early setting additive

The consumption amount of MTOCRETE S-123 depends on: temperature conditions, reactivity of cement used, required layer thickness, setting time and development of initial strength. Its general consumption between 3 and 10% will reduce the final resistance.

Cleaning the metering pump:

Before using MTOCRETE S-123 quick-setting concrete additive, the pipes must be completely cleaned and washed with plenty of water. Failure to do so will result in the system being blocked. Make sure all testing and user staff are aware of this issue.

How to store MTOCRETE S-123 quick setting concrete additive:

• MTOCRETE S-123 quick-setting concrete additive should be stored at +5 to +35 degrees Celsius. This product should be stored in plastic, fiberglass or steel containers. You should not put it in iron barrels, because its acidity will cause the container to corrode and affect the product's efficiency.
• After long storage, stir MTOCRETE S-123 concrete accelerator with a mechanical tool or pump. Do not use compressed air to mix it.
• If the barrel is left open for a long time, the surface of the liquid in combination with air will form a crust and produce bubbles, which will block the pipes.
• In case of freezing, contact the technical department of Concrete Clinic Iran and test the performance of the product before use.

MTOCRETE S-123 concrete protection and safety

MTOCRETE S-123 concrete accelerator does not contain any dangerous substances. Although all the precautions that are observed regarding cement materials should be applied. Avoid contact with skin and eyes. Use rubber gloves and goggles. In case of possible contact, wash the area with water. In case of contact with eyes, see a doctor.

Purchase and price of MTOCRETE S-123 quick setting concrete

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