ASTM C270 SPECIFICATION for MORTAR Unit Masonry C270 includes the following mortars:
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Appropriate number of SGS Color Units to be added with mortar mix
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Prepared masonry cements, ASTM C91, Types N, S or M:
One 70-80 lb (32-36 kg) bag masonry cement ASTM C91 Type 1: 3 cu ft (.08 m3) sand, STM C144
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Portland cement/lime mortars, Type N, 750 psi (5168 kPa):
One 94 lb (43 kg) bag Portland cement, ASTM C150; One 50 lb. (23 kg) bag hydrated lime, ASTM C207; 6 cu ft (.17 m3) sand, ASTM C144
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Preblended masonry cement & sand, ASTM C91, Types N or S:
Four 80 lb. (36 kg) bags masonry cement ASTM C91, sand ASTM C144
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Preblended Portland cement/lime & sand, Types N or S:
Four 80 lb. (36 kg) bags Portland cement ASTM C150; hydrated lime, ASTM C207; & sand, ASTM C144
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Portland cement/lime mortars, Type S, 1800 psi (12,400 kPa):
Two 94 lb (43 kg) bags Portland cement, ASTM C150; One 50 lb. (23 kg) bag hydrated lime, ASTM C207; 9 cu ft (.25 m3) sand, ASTM C144; or
Portland cement/lime mortars, Type S, 1800 psi (12,400 kPa):
One 94 lb (43 kg) bag Portland cement, ASTM C150; Two 70 lb. (32 kg) bags masonry cement Type 1, ASTM C91; 9 cu ft (.25 m3) sand, ASTM C144
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Three A Units Three A Units
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Three H Units Three H Units
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Three X Units Three X Units
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Portland cement/lime mortars, Type M, 2500 psi (17,225 kPa):
Two 94 lb (43 kg) bags Portland cement, ASTM C150; 25 lbs. (11 kg) hydrated lime, ASTM C207; 6 cu ft (.17 m3) sand, ASTM C144
Portland cement/lime mortars, Type M, 2500 psi (17,225 kPa):
One 94 lb (43 kg) bag Portland cement, ASTM C150; One 70 lb. (32 kg) bag masonry cement Type 1, ASTM C91; 6 cu ft (.17 m3) sand, ASTM C144
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Three A Units Two A Units
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Three H Units Two H Units
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Three X Units Two X Units
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Portland cement/lime mortars, Type O, 350 psi (2412 kPa):
One 94 lb (43 kg) bag Portland cement, ASTM C150; Two 50 lb. (23 kg) bags hydrated lime, ASTM C207; 9 cu ft (.25 m3) sand, ASTM C144
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