ASTM Specifications Classify Masonry Mortar into Type M, Type S

question 67

Short Answer

ASTM specifications classify masonry mortar into Type M, Type S, Type N, and Type O. The mortar can be specified based on the volume proportions of its three ingredients (Portland cement, lime, and sand)or based the mortar's strength. Which of the two specification methods-proportion specification or strength specification
-is commonly used?

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Definitions:

Described

Characterized or detailed in terms of appearance, function, or attributes, often used in the context of formal identification and naming in scientific classification.

Carbon Isotopes

Variants of the carbon atom with different numbers of neutrons, useful in studying environmental changes and understanding past climate conditions.

Extinct Whales

Whales that have no living descendants, often studied through fossils to understand the evolution and biodiversity of cetaceans.

Freshwater

Water that contains minimal concentrations of dissolved salts, typically found in rivers, lakes, and streams.