ASTM C926-26

Podrobné informácie

Označenie: ASTM C926-26

Dátum vydania: 01.04.2026

Stránok: 14

Krajina: Americká technická norma

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Anotácia

This specification covers the standard requirements for the application of full thickness Portland cement-based plaster for exterior (stucco) and interior work. It also sets forth tables for proportioning of various plaster mixes and plaster thickness. The materials used shall consist of the following: cement which shall be a Portland cement, air-entraining Portland cement, masonry cement, blended hydraulic cement, air-entraining blended hydraulic cement, or plastic cement; Type S hydrated lime; aggregates such as perlite and sand for base and job-mixed finish coats; water to be used in mixing; admixtures; and fibers. Surfaces of solid bases such as masonry, stone, cast-in-place or precast concrete shall be prepared either by sandblasting, wire brushing, acid etching, chipping, or a combination thereof. Details on curing to resist cracking; materials protection and storage; environmental conditions; and application of plaster, finish-coat, and fog-coat, which shall be done by hand or machine up to the specified nominal thickness on metal and solid plaster bases are discussed.


Keywords:
bond, brown coat, cementitious, exterior plaster, fog coat, portland cement, scratch coat, stucco,, ICS Number Code 91.100.10 (Cement. Gypsum. Lime. Mortar)