Strength and Rheology of Cemented Pastefill Using Waste
Polycarboxylate plasticizers are comb-like polymers composed of polyethylene chains that get adsorbed onto the surface of the cement particles and prevent the cement particles from flocculating and thus slowing down the hydration process and improving workability [ 9, 10 ].
Development of lignin-based polycarboxylates as a plasticizer
Plasticizers, such as lignosulfonate (LS) or polycarboxylate ether (PCE), have been used to reduce the amount of added water in cement paste, which is advantageous because water reduces the strength of hardened cement (Plank et al. 2010; Huang et al. 2018).
Influence of water/cement ratio, and type and concentration
A polycarboxylate plasticizer with the commercial name Viscocrete20He (Sika AG, Switzerland) was used in this study. Some characteristics of these two additives are shown in Table 2. As can be seen, the saturation capability of the Sikament175 plasticizer is higher than that of the Viscocrete20He.
Plasticizer And Superplasticizer in Chile
PCE Base Plasticizer . PCE is a polycarboxylate based high range water-reducing admixture which enables concrete to be produced with very low water to cement ratios. Polycarboxylate superplasticizer is compatible with air-entraining agents, microsilica, accelerators and many other admixtures however,each material should be added to the
Effect of Added Plasticizers on the Strength Metrics
Polycarboxylate additives change the strength of the samples as follows. The superplasticizer Melflux 5581 F in the amount 0.15% (by weight) increases strength in compression by 76% and in the amount 0.2% (by weight) the value increases by a factor of 2 and is equal to 34.8 MPa.
- Who makes polycarboxylate superplasticizers?
- As one of the most professional construction chemicals manufacturer in China, Kingsun has been committed to the research and production of polycarboxylate superplasticizers for more than 15 years. We have our own factory, the advanced production equipment and technology, and the annual output of PCE superplasticizers is up to 120,000 tons.
- What is polycarboxylate superplasticizer (PC-P)?
- Polycarboxylate Superplasticizer (PC-P) is free-flowing and spray dried powder, affords excellent control over initial and final setting times. PC-P is a free flowing and spray dried powder of new generation polycarboxylate based polymer used as a superplasticizer for cement-based materials.
- How to mix polycarboxylate superplasticizer?
- Polycarboxylate Superplasticizer must preferably be added in the mixing water and in case of ready-mix concrete where the product can be added on fresh concrete and in a mixing truck, it is necessary to mix at a high speed for about 6 – 8 minutes. Setting Time Deff.
- Is PC-P a naphthalene or melamine based superplasticizer?
- PC-P is also a superplasticizer for high performance concrete, high strength concrete, high volume fly ash/slag concrete, and grouting/self-leveling screed/mortar. It complies with ASTM C 494, Type-F specifications. Comparing to naphthalene and melamine-based superplasticizers, PC-P has superior characteristics of:
