New Test Method for Determining the Depth of Water Penetration into Concrete Subject to Hydrostatic Conditions
1. Scope
1. Scope
1.1 This test method covers determination of depth of water penetration in hardened concrete subject to hydrostatic conditions.
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.
1.3 The text of this standard refers to notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of this standard.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
(Warning—Fresh hydraulic cementitious mixtures are caustic and may cause chemical burns to skin and tissue upon prolonged exposure.2)
Keywords
Concrete; hydrostatic pressure; permeability-reducing admixture; waterproofing admixture; water penetration
Rationale
There is currently no industry accepted standard test method for permeability-reducing admixtures [a.k.a. PRA or waterproofing admixture]. These admixtures are designed to be used in concrete exposed to hydrostatic conditions for the purpose of enhancing watertightness of concrete structures. The intent of this test method is to define the conditions, test procedures and results to be used for the purposes of qualifying a material as a permeability-reducing admixture for hydrostatic conditions. The method can also be used for evaluating the effect of mix proportions, coatings, or other concrete variables on water penetration (under pressure) into concrete. Users of this test method include admixture producers, testing laboratories, universities, and concrete specifiers.
