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ASTM Specifications Classify Masonry Mortar into Type M, Type S

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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. In which situations is strength specification used?


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Pediatrician

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A harmful colonization of the body by bacteria, leading to illness, inflammation, and tissue damage.

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Tiny living organisms that can only be seen with a microscope, including bacteria, viruses, fungi, and protozoa.

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A French biologist, microbiologist, and chemist renowned for his discoveries of the principles of vaccination, microbial fermentation, and pasteurization.

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