How to plaster with portland cement adding accelerator. Portland cement plaster stucco manual fifth edition by john m. Astm c 1063 standard specification for installation of lathing and furring for portland cement based plaster. When patching plaster, each succeeding coat is cut back further than the preceding coat, the base coat being the smallest area and the finish coat being the largest area to be patched.
We have seldom seen the manufacturers instructions followed to the letter in the field. Plaster plaster stucco manualortland cement portland. The result will be popular attractive stucco finish having the toughness and durability of concrete. Standard specification for installation of steel framing members to receive screwattached. Portland cement plaster, and the guidelines given in the portland cement plaster stucco manual in applying the plaster. Concrete mix ratios cement, sand, aggregate and water. For terminology on gypsum plaster, refer to latest edition of portland cement plaster stucco manual by portland cement association and astm c11 standard terminology relating to gypsum and related building materials and systems. The four basic ingredients for making concrete are. This guide provides information on the plastering process, including prequalification of materials, plaster tool and equipment suggestions, mixture proportions, application procedures, finish types, and troubleshooting and repair.
Cementitious exterior wall coating or exterior cement plaster stucco ansi accredited evaluation service an ansi accredited or equivalent thirdparty organization that issues an evaluation report. This section specifies lathing and portland cement based plaster. Ppc cement is preferred in place of opcgrade cement for plastering. The minnesota lath and plaster bureau has promoted the industry since 1953. Interior and exterior portland cementbased plaster astm c28 standard specification for plastic stucco cement astm e72 standard test mix consistency and eliminates the disposal of methods of. Standard specification for application of portland cement. The concrete specimens were made of both ordinary portland cement and ordinary portland cement with 10% silica fume as a. Work under this section shall include all materials and installation for portland cement plaster stucco siding as shown and detailed on the drawings and specified herein. As you design and construct stucco projects, you may need some assistance. The terms stucco and portland cementbased plaster are often used interchangeably in the trade. This howto guide and technical manual contains everything you need to know about plastering and stucco.
A more indepth discussion of the test procedures can be found in the design and control of concrete mixtures published by the portland cement association and the standard specifications for transportation materials and. Comply with manufacturers instructions for installation of lahabra fastwall 300 stucco. Brodie, 1992, nature, 467 pages medicinal plants of east africa is a revised edition of the book first published in 1976 on herbal remedies and he traditional. Application of portland cementbased plaster florida building code. Manufacturers standard factoryblended stucco basecoat concentrate consisting of portland cement, hydrated lime, alkali resistant. Steel sheet, hotdip galvanized, commercial quality e. Bonding compounds, including application instructions. Cad drawings of portland cement plastering caddetails. Download free, highquality cad drawings, blocks and details of portland cement plastering organized by masterformat. The strength of concrete mixture depends on the ratio in which these four ingredients are mixed. I found the most useful information at the very end when you are shown several stuccoplaster finishes with a brief instruction on how to achieve that finish. Portland cement plaster stucco resource guide, 1998.
Standard specifications for portland cementbased plaster are covered in astm documents. This guide, however, refers to stucco as plaster that is applied to an exterior surface, and portland cementbased plaster as plaster that is applied to either an interior or. Portland cement association, 1917 page images at hathitrust. This chapter is not intended to be a plasterers manual, but because of the common waterproofing problems of plaster over wood, a few critical aspects of this. Commercial cement plaster ccp 2 ccp 2 is a traditional stucco assembly over wood or steel frame construction with a dryvit approved sheathing and a dryvit polymer finish. Astm c 926 standard specification for application of portland cementbased plaster. Threecoat work is to be used over all metal plastering bases, with or without solid backing. For unlimited design possibilities in a tough, durable, and beautiful exterior cladding, remember traditional portland. To plaster 100 square metres 15 millimeters thick you will need. Pruter authored the plaster and drywall systems manual.
Plasterers manual for applying portland cement stucco and plaster by portland cement association. Use the same size of container for measuring all the materials in a batch. Pca portland cement association plaster stucco manual. Portland cement plaster stucco is a building facing material consisting of portland. White cement meeting astm c150, astm c595, or astm c1157 white cement is used in plaster, concrete, and masonry materials for a variety of architectural and decorative applications. Where indicated, provide portland cement plaster assemblies identical to those of assemblies tested for fire resistance per astm e119 by a qualified testing agency. Portland cement consists of four major clinker compounds, c 3 s, c 2 s, c 3 a, and c 4 af together with the gypsum added during grinding. Manual on plasterers tools, application, and finishes. This is an essential reference for any contractor testing for a plastering and stucco contractor license.
Concrete mix ratio is a vital topic in concrete mix design. This fifth edition, illustrated with numerous color photos, contains essential information on materials, bases, mixes, hand and machine applications, and curing. Portland cementbased plaster and stucco specifications. Installation guidelines eldorado stone, part of the headwaters stone division, endorses and supports the. Unfortunately, portland cement plaster is also one of the most abused materials currently used in construction. Plaster systems typically consist of a substrate, a basecoat plaster and a finish plaster. Portland cement plasterstucco manual contractor campus. Plasterers manual for applying portland cement stucco and. Stucco, the common term for portland cement plaster, is a popular exterior finish for buildings. Most aci standards and committee reports are gathered together in the annually revised aci manual of. Precautions the following points apply to all products made from portland cement.
Cement plaster is a homogenous mixture of portland cement, fine aggregates, and water. Stucco and plaster have been around for millennia, but the discovery of portland cement strengthened them. Substrates substrates can be either metal lath, unit masonry, monolithic concrete, or a recommended gypsum base, cement board or gypsum fiber panel. This chapter is not intended to be a plasterers manual, but because of the common waterproofing problems of plaster over wood, a few critical aspects of this system are set forth. Generally, opc 43 and opc 53grade cement is mixed with sand the fine aggregate in different proportions. It provides an economical hard surface that is rot, rust, and fire. Application of portland cementbased plaster physicalchemical properties quikrete finish coat stucco is a portland cement based finishing plaster complying with astm c926 requirements for type f plaster. A number in parentheses indicates the year of last reapproval. This portland cement association publication covers most aspects of the plastering and stucco trade. A code approved water resistive barrier and lath are required. Provide portland cement based plaster where cement plaster stucco is shown and specified, and as follows. Other than that, the advice printed in this short manual produced by the portland cement association can be found at numerous web sites. Portland cement plaster is a combination of portland cementbased cementitious materials and aggregate, mixed with a suitable amount of water to form a plastic mass. It provides an economical hard surface that is rot, rust, and fire resistant, which can be colored and finished in a wide range of textures to adorn any architectural style.
Portland cement plaster is usually applied in three. Cement plaster fg qp1250 to apply as fine thin coat plaster on ceilings and rough cement plaster surfaces. The relative portions of these compounds can be changed to optimize specific properties of the cement discussed in more detail below. The plaster will adhere to a surface and harden, preserving any form and texture imparted to it while plastic. Interior portland cement plasterwork on metal lath and solidplaster bases. Perform work in accordance with current portland cement association plasterstucco manual eb049 and aci 524r guide to portland cement based plaster. Plasterers manual for applying portland cement stucco and plaster. Do not install plaster during wind greater than 10 mph and, if wind commences after plastering has begun, immediately protect the plaster from wind by all means necessary until the plaster has set. It provides services to architects, the construction community and the public on a variety of matters relating to the plastering trades. Standard specification for application of portland cementbased plaster1 this standard is issued under the fixed designation c926. Repair of portland cement plaster stucco a a a a aa aa a a a a a aa a a a a a finish coat brown coat scratch coat metal lath building paper fig.
The terms stucco and portland cement based plaster are often used interchangeably in the trade. Lahabra fastwall 300 stucco assembly with acrylic or elastomeric finish. White cement is specified in these applications for its color consistency, appearance and the ability to create a durable, rocklike. Portland cement plaster is mixed on the job by combining plastering sand, portland cement, a plasticizing agent, and enough water to produce a consistency suitable for the application method youll be using.