POLYMERIC PLASTICIZERS FOR GYPSUM-FREE CEMENT
The cement paste was obtained by mixing of pure, gypsum-free ground clinker with water, and lower or higher amount of plasticizer. The coils of water-soluble polymers or the particles of dispersions covered only from 7% to 17% of the surface of the cement particles.
Polymeric plasticizers for gypsum-free cement - ScienceDirect
Plasticizers for cement are organic water-soluble compounds such as lignosulfonates, sulfonated melamine, or naphthalene condensates with formaldehyde [1]. The influence on the properties of concert samples, made from gypsum-free cement and several water-soluble polymers and nitrogen-containing epoxy oligomer, is described in [2].
Eastman Product List for Polymeric Plasticizers
Admex 525 is a low molecular weight, polymeric plasticizer. Admex 760 is an ultra-high molecular weight, polymeric adipate. It possesses maximum resistance to extraction, migration and volatility. Admex 770 is a medium molecular weight, polymeric adipate. It is characterized by a mild ester odor and very light color.
Polymeric plasticizers for gypsum-free cement | Request PDF
Request PDF | Polymeric plasticizers for gypsum-free cement | The influence of water solutions of polyvinyl alcohol, a copolymer of acrylamide/N-methylol-acrylamide, and six water-borne polymer
Concrete Plasticizers, Cement & Plastic Fillers | USG
Builders and project managers count on USG’s selection of concrete plasticizers and cement plasticizers to strengthen their structures. Our concrete plasticizer products reduce the water/cement ratio to achieve better results. View our plasticizer admixture for concrete and other offerings below.
- What is natural gypsum?
- Natural gypsum – an important raw material source together with FGD gypsum High water reduction using Sika® ViscoCrete® technology in gypsum board production
- Is Sika a PCE Based plasticizer?
- Today Sika is a leading producer of PCE-based plasticizers, with our own network of Sika® ViscoCrete® production sites worldwide, and we have truly international experience with gypsum, ternary and cement binders in countless different appli-cations. Sika® ViscoCrete® technology is based on PCE, which was one of our innovations in the late 1990’s.
- How can gypsum boards reduce water consumption?
- Reducing the water require-ment by using innovative additive technologies like Sika® ViscoCrete® can significantly reduce these energy costs. This also results in a greatly reduced carbon footprint to be applied over the entire service life of gypsum boards. Natural gypsum – an important raw material source together with FGD gypsum
- How are gypsum boards made?
- Gypsum boards are manufactured in a highly automated and continuous production line process. The plaster is mixed with water, various additives and prefabricated foam to form a consistent wet slurry mix.
- How effective is Sika® ViscoCrete® PCE for gypsum liquefying?
- Compared to conventional naphthalene-based plasticizers the liquefying performance of Sika® ViscoCrete® PCEs for gypsum is typically 3 to 5-times higher.
- Why is gypsum plaster important?
- Rapid setting and hardening of the gypsum is normally of crucial importance to run board production at high speed and optimal capacity utilization. The use of gypsum plaster in combination with highly efective accelerators, especially fine ground gypsum, is state of the art.
