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Inspection and maintenance of UHPC Steel Fiber mix
 Dec 19, 2022|View:574

Nowadays, with the development of society, UHPC Steel Fiber has become a high-strength concrete reinforcement material widely used in the world construction industry. Compared with ordinary concrete, concrete mixed with UHPC Steel Fiber can be 30-100 meters apart for road expansion joints and up to 30 meters between airport runway expansion joints. Road and bridge decks are rehabilitated, and the pavement thickness is only 3 to 5 cm. Under high loads, railroad projects vibrate tens of thousands of times at high speeds, giving high concrete strength, high impact resistance, and greater plasticity.

UHPC Steel Fiber

1. Inspection of UHPC Steel Fiber mix.

Checking the workability of the UHPC Steel Fiber mix can directly reflect the quality of the mix construction quality control. Suppose the mixture slump or holds consistency and cohesion, and water retention appear more dynamic. In that case, it is usually caused by errors in the batching of the mixture or large fluctuations in the moisture content of the sand and gravel. Since the workability of the.UHPC Steel Fiber mixture is often checked at the mixer's discharge, which is an important part of the quality control of the UHPC Steel Fiber structure.

2. Why does the UHPC Steel Fiber mixture needs to be mixed?

Mixing is a very important part of using UHPC Steel Fibers in concrete, which determines all the physical and chemical properties of the final UHPC Steel Fiber. Therefore, mixing must be done scientifically to maximize the performance of UHPC Steel Fibers to meet or exceed the design requirements. The general use of steel fiber machines is done in no more than two ways: manual mixing and machine mixing. Maintenance projects generally use manual mixing, so the total amount of concrete will not be too much. UHPC Steel Fiber is well used in coastal areas. Seawater erosion in coastal areas is more serious, so UHPC Steel Fiber products will certainly be used in coastal construction projects.

3. Use and maintenance of UHPC Steel Fiber.

When UHPC Steel Fiber reinforced concrete is damaged, most of it is because UHPC Steel Fiber filaments are pulled out rather than broken. Therefore, improving the bond strength between UHPC Steel Fiber and the substrate is one of the main control factors to improve the reinforcing effect of steel fiber. The compressive strength, tensile strength, flexural strength, impact strength, toughness, and impact toughness of concrete with UHPC Steel Fiber are greatly improved.

After UHPC Steel Fiber is put into concrete, the lateral connection between fiber monofilaments is torn under the impact of coarse aggregate in the mixing process to form fiber monofilaments. It can be used for anti-cracking, impermeability, reinforcement, and toughening concrete works. Steel fiber cannot replace structural reinforcement or reduce the size of the main structure. It cannot be used to resolve settlement, the heat of hydration of large concrete masses, and strong external impacts.

The above is the knowledge about the inspection, use, and maintenance of UHPC Steel Fiber mix. If you need more detailed information, welcome to contact us!