Superplasticizers
Superplasticizers. Sokalan PA 25 CL PN. Polyacrylic acid, sodium salt, partly neutralized. ... Raw materials for Polyurethane (PU) foam stabilizers. Polyurethane
Raw materials for superplasticizers
Raw materials for superplasticizers. Superplasticizers are used extensively in larger projects where reinforcing steel requires high workability, for precast concrete and on site where the large water reduction capability provides very early strength concrete with improved durability. Clariant is one of the world's leading suppliers of
Effects and mechanism of superplasticizers and precursor
The polycarboxylate-based superplasticizers were the most effective type in the case of fly ash based geopolymer activated by NaOH + Na 2 SiO 3 activators. Whereas, in the case of NaOH solution activated slag, naphthalene-based superplasticizers were the most efficient type.
Raw materials for superplasticizers
Raw materials for superplasticizers. Superplasticizers are used extensively in larger projects where reinforcing steel requires high workability, for precast concrete and on site where the large water reduction capability provides very early strength concrete with improved durability. Clariant is one of the world's leading suppliers of
Suitability of commercial superplasticizers for one-part
Alkali-activated materials are a low-CO 2 alternative for Portland cement in construction. However, one major issue in their use is the poor or varying functionality of the currently available commercial superplasticizers. Especially for one-part (‘just add water’) alkali-activated materials, the number of studies is limited.
- Are superplasticizers based on local raw materials for pyrolysis hydrocarbons?
- The study considers the synthesis of superplasticizers based on local raw materials - secondary raw materials for the hydrolysis of pyrolysis hydrocarbons. The main raw material was the naphthalene fraction obtained in the range of 210-230°C from pyrolysis oil, a secondary product of the Ustyurt gas chemical complex of Uz-KorGaz Chemical LLC.
- Which superplasticizers are used in this study?
- The superplasticizers used in this study were naphthalene sulfonate (NSS), polycarboxylate (PCS), and sulfonated melamine superplasticizer (SMS); their characteristic parameters are listed in Table 2. The recommended dosage and water-reducing rate listed in Table 2 match those provided by the manufacturers.
- What are superplasticizers-polymer additives?
- Superplasticizers-polymer additives are widely used to increase the plasticity of concrete materials without reducing their strength. In terms of chemical plasticizers, the products are formaldehyde condensate of naphthalene sulfonic acid, melamine-formaldehyde condensate, and products of modification lignosulfonates [3, 4].
- Why do we need superplasticizers?
- To effectively solve the problem of developing prefabricated, monolithic concrete and reinforced concrete structures with high strength and durability of concrete mixtures, and special chemical additives, the widespread use of superplasticizers is required.
- Does superplasticizer improve pore distribution and compactness of hardened Grout?
- Microstructural analysis showed that the superplasticizer can promote hydration of silicon and aluminum in the raw materials, thus optimizing the pore distribution and compactness of the hardened grout. The addition of NSS and PCS reduced the porosity by 4.17% and 2.84%, respectively.
- What are some examples of superplasticizer compositions?
- Common examples of superplasticizer compositions include Polynaphthalene Sulfonate (PNS), Polymelamine Sulfonate (PMS) and Polycarboxylate Ether (PCE) based polymers. This study focuses on assessing the impact of various superplasticizers on the performance of UHSC.
