Astm C270
Four types of mortar are covered in each of two alternative specifications. Potability of water is not in.
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June 1 2010 Standard Specification for Mortar for Unit.
. The materials which could be used in a cement-lime mortar are defined in ASTM C270 Mortar for Unit Masonry. Four types of mortar are covered in each of two alternative specifications. 1 proportion specifications and 2 property specificationsNOTE 1When the.
Aggregates which fail these gradation limits may be used as long as the resulting mortar complies with the property specification requirements of ASTM C270 as shown in Table 2. Actual 28-day test data for a property blend Type N is generally in the range of 1700 PSI and higher and Type O can easily be 1200PSI and higher. ASTM C144 may be used in a mortar if that mortar meets the property requirements of ASTM C270 the Standard Specification for Mortar for Unit Masonry.
In many regions most masonry sands used are qualified on this basis. The ASTM C270 property specification includes a limit on the mortar air content. There is no ASTM method for determining the conformance of a mortar to the property specifications of Specification C270 by testing hardened mortar samples taken from a structure.
To do so ASTM will engage an independent consultant subject to a confidentiality agreement to review Licensees use of ASTM Product. However precision and bias have not been. Blended Hydraulic Cement - Types IS IS-A IP IP-A IPM IPM-A of ASTM Specification C595595M.
4f must be clean and free of deleterious amounts of acids alkalis or organic materials. Quicklime - ASTM Specification C5. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy Safety How YouTube works Test new features Press Copyright Contact us Creators.
ASTM C270-12 January 1 2012 Standard Specification for Mortar for Unit Masonry 11 This specification covers mortars for use in the construction of non-reinforced and reinforced unit masonry structures. In general greater air contents result in greater mortar durability and workability but reduced mortar bond strength. Water for masonry mortar ASTM C270 ref.
Masonry cement is a product specifically formulated and manufactured to be used in. Standard Specification for Mortar for Unit Masonry Version. Air content is determined in accordance with ASTM C91 with the exception that the laboratory-prepared mortar is required to be of the materials and proportions used in the.
Lime Putty - ASTM Specification C1489. Portland Cement - Types I IA II IIA III or IIIA of ASTM Specification C150 or. As noted in this chart ASTM C270 establishes minimum 28-day strengths of 350 PSI for Type O property blend mortar and 750 PSI for Type N property blend mortar.
These are minimum required strengths. ASTM has the right to verify compliance with this Agreement at its expense and at any time during the course of normal business hours. ASTM C270 Revision 19A May 1 2019 - Standard Specification for Mortar for Unit Masonry This specification covers mortars for use in the construction of non-reinforced and reinforced unit masonry structures.
NOTE 12The results of tests using Test Methods C780 Annex 4 and C1324 can be compared with Specification C270 proportion requirements.
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