The four basic ingredients for making concrete are: Portland cement, sand, aggregate (stone) and water. Type N mortar mix has a medium compressive strength and it is composed of 1 part Portland cement, 1 part lime, and 6 parts sand. The closer the clay percentage gets to 30%, the closer it is to a Portland cement, since the strength will be the same. The use of Portland Cement/Lime mortars for unit masonry and/or stucco was the standard of the industry for nearly a century. It is also the preferred mortar mix … Masonry cement comes with lime already included. Use the cement mortar. For Stucco Mix (ASTM C-926): Mix 1 part ASH GROVE ® Portland Type I/II Cement, ½ part Lime, and 4½ to 6 parts Plaster Sand. The more lime you add, the stickier the skim coat mixture will be. The specifier should evaluate the interaction of the mortar type and masonry unit specified. Some ares such as FL, CA, OR, WA experience higher yields due to local materials and practices. Available in types N, M, and S, our mortar mix comes in 36 standard colors or it can be color-matched to any masonry unit. Portland cement was able to attain very quick setting times compared to lime, but its strengths were fairly limited compared to natural cements and it didn’t catch on for about 50 years. Structural / Non-Structural Brick and Block Masonry Mortar, TYPE M (PL-02), TYPE S (PL-03), TYPE N (PL-04), COLOR (PL-05). CEMEX Portland Cement-Lime Mix is a factory blended product consisting of Portland Cement that meets ASTM C-150 Specifications and hydrated lime that meets ASTM C-207 (Type S) Specifications. To make Concrete Mix: 3 parts All-Purpose Gravel (No. Hand mix mortar only with written approval by the specifier who should outline procedures. To make Type S Mortar Mix: 2 1/2 to 3 parts Mason Sand (No. Add all of the Type S hydrated lime 4. Portland lime cement causes skin burns with little warning. Just add water and mix. Portland Cement/Lime vs. Masonry Cement/Stucco . Maintain the same mixing procedures to maintain consistency throughout the project. However, there are three basic strengths of lime mortar, depending on the amount of clay present. Lime is also a common additive to the mix. Spec Mix® Portland Lime & Sand White Mortar is a dry preblended mortar mix containing white Portland cement, hydrated lime and dried masonry sand formulated for superior bond, water retention and board life. This Portland Cement-Lime Mix is mixed with 1:2¼ to 1:3½ cubic feet of sand meeting ASTM C-144 Specifications, and will produce a mortar that exceeds the requirements of ASTM C-270 and U.B.C. That is, masonry units having a high initial rate of absorption will have greater compatibility with mortar that has high water retentivity. Available in Types M, S and N, each meets ASTM C 270, ASTM C 1714 and CSA A179 requirements. Portland cement was Invented in 1824 by Joseph Aspdinby mixing calcined hard limestone with clay and mixing it down into a slurry before heating it a second time. Use a ratio of 3 parts sand to 1.5 parts cement. Because the compressive strength of masonry mortar is generally less important than bond strength, workability and water retentivity, the latter properties should be given principal consideration in mortar selection. 1125-20) is a blend of portland cement and hydrated lime. 8. 1. A sample of the proposed product will be provided by the manufacturer for architectural approval and testing, if required. Portland Lime can be mixed with sand to create a mortar mix for masonry projects. If admixtures are specified, they must be checked before the job starts under the parameters of the Property Specifications of ASTM C-270. Otherwise, you can mix the skim coat batch in the same way you would with a normal cement and water base. 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