JIS A 1109:2020 PDF Download

JIS A 1109:2020 is a standard that outlines the methods for testing the density and water absorption of fine aggregates. The standard provides a detailed procedure for determining these properties, which are important parameters to assess the quality and suitability of fine aggregates in various construction applications.

The standard also highlights that the method specified in JIS A 1134 is applicable for lightweight fine aggregates used in structural concrete. This method involves immersing the aggregates in water for 24 hours and measuring their density and water absorption.

Furthermore, the standard acknowledges the corresponding international standard, ISO 7033:1987, which utilizes the pycnometer method to determine the particle mass-per-volume and water absorption of both fine and coarse aggregates for concrete.