ISO 17785-3:2023

Overview

ISO 17785-3:2023 - Testing methods for pervious concrete - Part 3: Resistance of surface degradation, defines standardized laboratory procedures for evaluating the durability of pervious concrete surfaces. This international standard focuses on assessing resistance to surface degradation caused by a combination of impact and abrasion. By subjecting concrete specimens to controlled mechanical wear in a rotating steel drum, the document ensures reliable measurement of mass loss-a critical indicator of the concrete’s performance and longevity in applications exposed to traffic and environmental stresses.

Key Topics

• Pervious Concrete Testing: Specifies procedures for preparing, curing, and testing pervious concrete samples.
• Surface Degradation Assessment: Details methods for quantifying resistance to abrasion and impact, simulating real-world mechanical stresses found in pavements and similar structures.
• Rotating Steel Drum Method: Describes a laboratory technique where concrete specimens are exposed to repeated revolutions in a steel drum (Los Angeles machine) to induce degradation.
• Mass Loss Calculation: Outlines precise calculations for determining the percentage mass loss after testing, offering a standardized measure for durability.
• Reporting Requirements: Lists critical data to include in test reports, supporting traceability and comparison across different concrete mixtures.

Applications

• Pavement and Road Performance: The test methods provided in ISO 17785-3:2023 are widely used to evaluate pervious concrete intended for sidewalks, parking areas, and low-volume roadways. Resistance to surface degradation is a key quality metric for these applications, directly impacting maintenance cycles and safety.
• Stormwater Management: Pervious concrete allows water infiltration, but ongoing mechanical resistance is needed to ensure these systems remain effective in high-traffic areas. Using standardized methods verifies the long-term viability of pervious installations.
• Material Development and Mixture Evaluation: Concrete producers, civil engineers, and researchers use the procedures to compare different raw materials, mixture proportions, and curing processes for optimizing product durability and compliance with regulatory or project requirements.
• Quality Control in Manufacturing: Routine use of this standard helps manufacturers maintain consistent product quality, build client trust, and meet green infrastructure standards by verifying permeable pavement durability before installation.

Related Standards

• ISO 17785-1 - Testing methods for pervious concrete - Part 1: Infiltration rate: Complements Part 3 by specifying infiltration rate testing methods for assessing permeability.
• ISO 17785-2 - Testing methods for pervious concrete - Part 2: Density and void content: Provides procedures for measuring the density and void space, key characteristics in both strength and permeability.
• ISO 565 - Test sieves - Metal wire cloth, perforated metal plate and electroformed sheet - Nominal sizes of openings: Referenced for sieve requirements during testing.
• ASTM C131/C131M - Resistance to Degradation of Small Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine: Basis for using the Los Angeles machine in durability testing.
• ASTM D6926 - Preparation of Bituminous Specimens Using Marshall Apparatus: Referenced for compaction procedures.
• ISO 1920 Series - Multiple parts relevant to general concrete testing, sampling, and specimen preparation.

ISO 17785-3:2023 is an essential resource for quality assurance, compliance, and performance improvement in pervious concrete applications, supporting safe, sustainable, and long-lasting infrastructure.