Anhui Yulong New Material Technology Co., Ltd. produces anti-segregation agents, which are pure biological fermentation and pollution-free. Its main products include concrete anti-segregation agents, mortar anti-segregation agents, and anti-segregation agents. The anti-segregation agent is cheap and has a large output, which greatly reduces the production cost. It replaces the originally used cellulose ether and is much cheaper than cellulose. Welcome to inquire.
Product characteristics:
1. Improve system viscosity: The aqueous solution of this product has good viscosity and consistency. It can be used in concrete to make the concrete have Good viscoelasticity, plasticity and toughness can effectively improve cracks, hollowing, blistering, peeling and other phenomena that are prone to occur in concrete.
2. Improve workability: This product can improve the fluidity of concrete mixture under low water-binder ratio conditions, while ensuring good cohesion and stability, preventing bleeding and segregation, and making the concrete The structure is more uniform, the pumping process is smoother, and it is less likely to cause blockage and other phenomena.
3. Improved constructability: This product has strong slump-preserving ability and strong adaptability to cement varieties, models and temperatures, and is almost unaffected by changes in external temperature.
4. Good compatibility: This product is a high-molecular biopolymer with strong acid and alkali resistance. It does not react with other materials in the components and is compatible with all commonly used additives including naphthalene, melamine and polycarboxylic acid. All admixtures are compatible.
5. Green and environmentally friendly: This product is polymerized from high molecular biopolymers and does not cause pollution to the natural environment during production and use.
Product indicators:
The factory standards for this product are as follows:
Item Targets Accurate
Appearance off-white powder
Particle size (passing 0.28mm aperture sieve) % ≥ 95
pH (1% aqueous solution, 25) 6.5-8.5 (0.5% tap water solution, 25) mpa.s ≥ 1200
Flow pattern index (N value) ≤ 0.5
Shear performance value ≥ 7.0
The segregation of concrete is that the cohesion between the components of the concrete mixture is insufficient to resist coarse aggregates By sinking, the components of the concrete mix separate from each other, causing uneven internal composition and structure. It usually manifests as the separation of coarse aggregate and mortar from each other, such as dense particles depositing at the bottom of a large mix, or coarse aggregate being separated from the mix as a whole.
There are many reasons for segregation. It may be due to improper pouring and vibration, the maximum particle size of the aggregate is too large, the proportion of coarse aggregate is too high, the content of cementitious materials and fine aggregate is low, the density of coarse aggregate is too high compared with fine aggregate, or the mixing Things are too dry or too wet, etc.
If improper construction operations are ruled out, paying attention to the following aspects can appropriately reduce concrete segregation caused by material problems:
1. Cement
There are 6 main types of cement used in concrete production in our country. There are countless manufacturers. The quality control of cement is the most important. Importantly, in addition to choosing a manufacturer with good qualifications and good reputation, you should also note that after the cement enters the factory, it must be tested according to the required test items, pay special attention to the water demand of the cement, and redo the concrete mix proportion if necessary. test.
2. Admixtures
The use of mineral admixtures or air-entraining agents can reduce the tendency of segregation. However, improper use of admixtures will also cause concrete segregation.
3. Admixtures
The use of all admixtures used in the concrete production process All must be based on experiments.
The amount of fly ash should be controlled and a lower mix ratio should be used for production. Substituting a small amount of cement with silica fume, zeolite powder, etc. can well control the segregation phenomenon of concrete and improve the workability of concrete.
4. Aggregate
For the segregation of concrete that may be caused by aggregates, strict measures should be taken Inspection system for aggregates entering the site to ensure the quality of aggregates. For the segregation problem caused by excessive flake stone chips in the aggregate, adjusting the sand rate alone cannot solve the problem. The concrete cementing materials (especially the amount of admixtures) should be increased and the amount of admixtures should be adjusted at the same time.
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