RS ASTM E1857: 2021 STANDARD GUIDE FOR SELECTING OF CLEANING
TECHNIQUES FOR MASONRY, CONCRETE, AND
STUCCO SURFACES
6,000.00
2
12,000.00
2
Rwanda Standards
RS 543: 2023 MASONRY UNITS TEST METHODS —
DETERMINATION OF WATER ABSORPTION OF
AGGREGATE CONCRETE, AUTOCLAVED AERATED
CONCRETE, MANUFACTURED STONE AND NATURAL
STONE MASONRY UNITS DUE TO CAPILLARY
ACTION AND THE INITIAL RATE OF WATER
ABSORPTION OF CLAY MASONRY UN
