![]() Fiber reinforced perlite cement plaster basecoats accept a wide variety of finishes such as cementitious color and texture coats, stucco, polymerized cementitious coatings, tile, or masonry veneer. After the basecoat has been allowed to dry at least 5 days, finish materials may be applied following manufacturer's recommendations. To assure proper hydration of the cement, the basecoat plaster should be kept damp for at least 48 hours. Brown coats should be flat and even but be sufficiently rough to receive finishes. When plaster begins to set it should be floated to provide compaction. For horizontal applications (panel construction), plaster may be poured in one coat and screeded level. The brown coat may be applied as soon as the scratch coat has set sufficiently hard to support subsequent coats. On vertical applications, plastering should consist of separate scratch and brown coats. For machine application, 1/2 in (13mm) long fibers are preferred as they do not tend to ball up in the equipment. ** high strength, high shear base fortile or veneerįiber reinforced perlite cement plaster may be machine or hand applied. The proper proportions of materials for various fiber reinforced perlite plasters are shown following table.įiber Reinforced Perlite Plaster Mix Proportions and Propertiesĩ4 lbs (43 kg) Portland Cement (Type I/II)Ħ ft 3 (0.17 m 3) Perlite Plaster AggregateĤ lbs (2 kg) Alkali Resistant Glass Fibersģ ft 3 (0.085 m 3) Perlite Plaster Aggregate Mixing should continue until the mix is thoroughly blended but should not exceed 4 minutes. ![]() Perlite aggregate and chopped fiber is added as the mixer is rotated. In batch mixing, all required water is placed in the mixer and cement is added and mixed for approximately 1 minute until the slurry is uniform. On smaller projects, it has proven more efficient to prefabricate the wall panels on each floor of the building and tip them into place. Perlite cement plasters with fiberglass reinforcement can also be used for fire protecting structural steel columns or for any normal application where conventional cement plasters might be used.įiber reinforced perlite cement plaster panels using steel studs may be constructed in a fabricating shop and shipped to the job site for installation. The addition of alkali resistant glass, polypropylene or acrylic fibers makes possible the manufacture of prefabricated steel stud, lath, and plaster exterior wall panels for high rise structures. In addition, fiber reinforced perlite cement plaster panels can be safely and easily handled in the field. ![]() With the addition of fiber reinforcement, superior crack resistance is achieved. They are more fire resistant, better insulators, and weigh approximately 60% less than conventional cement and sand plasters. Portland cement plasters made with perlite aggregate instead of sand offer many advantages. ![]() SCHUNDLER PRODUCT GUIDE-Perlite Cement Plasters-Lightweight Fiber Reinforced FIBER ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |