Optimisation of plasticizers for gypsum applications - ZKG
Following their adoption in cementitious systems, superplasticizers based on polycarboxylate ethers are now increasingly being selected for gypsum applications. Binder-specific additive optimisation produces plasticizers with an enhanced water-reduction capability and simultaneously reduced setting times. In recent years, PCE-based plasticizers
Concrete Plasticizers, Cement & Plastic Fillers | USG
Cement & Plastic Fillers. 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.
Plasticizers: Types, Uses, Classification, Selection & Regulation
The most widely used internal plasticizer monomers are: Vinyl acetate Vinylidene chloride But this technique is limited: every copolymer is only suited to certain flexibility requirements Also, the complexity of the reaction can lead to longer reaction times and increased costs.
Plasticizer
Sebacate - based plasticizers provide excellent compatibility with a range of plastic materials and synthetic rubbers (specifically nitrile rubber and neoprene), superior properties at low temperatures, and good oil resistivity. Some examples are: Dibutyl sebacate (DBS) Di- (2-ethylhexyl)sebacate, Di-octyl Sebacate [15] (or DOS plasticizer)
The Composition of Drywall and Joint Compound - The Spruce
Gypsum Plaster Comprising between 70 to 90 percent of sheet drywall, gypsum has long been the mainstay of drywall products. Otherwise known as calcium sulfate, gypsum is cheap to mine, is fire-proof, and it provides superior sound-deadening properties. Fire-rated type X drywall has fiberglass added to the gypsum.
- Are Polycarboxylate ethers suitable for gypsum?
- Following their adoption in cementitious systems, superplasticizers based on polycarboxylate ethers are now increasingly being selected for gypsum applications. Binder-specific additive optimisation produces plasticizers with an enhanced water-reduction capability and simultaneously reduced setting times.
- Do PCE based plasticizers reduce water-reduction efficiency in pure gypsum?
- The structure of PCE-based plasticizers was therefore modified in order that these products would exhibit their greatest water-reduction efficiency in pure gypsum phases, such as alpha- and beta-hemihydrate or anhydrite. Heterogeneous...
- Which gypsum binders are suitable for Sika® ViscoCrete® G2?
- Sika® ViscoCrete® G-2 is formulated for applications in systems with high calcium sulfate content or pure gypsum binders. The product is especially suitable for the manufacture of gypsum products like: Sika® ViscoCrete® works based on a combination of electrostatic forces and steric repulsion effects.
- Can Sika® ViscoCrete® g2 be combined with other gypsum additives?
- Sika® ViscoCrete® G-2 may be combined with many other Sika products as well as with most commonly used gypsum additives, like foaming agents, accelerators and retarders. In combination i.e. with Retardan (R) improvements in flowability and setting-time adjustment may be achieved.
