ISO 17785-1:2016 PDF

Name: ISO 17785-1:2016 — Testing methods for pervious concrete — Part 1: Infiltration rate
SKU: ISO 17785-1:2016
Price: 25 EUR
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Testing methods for pervious concrete — Part 1: Infiltration rate

Название (английский):

ISO 17785-1:2016

Testing methods for pervious concrete — Part 1: Infiltration rate

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 6
Дата публикации:: 27 мая 2016 г.
Издание:: ISO IS 17785 edition 1 version 1
ICS:: 91.100.30

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Описание (английский):

ISO 17785-1:2016 specifies the procedure for testing the infiltration rate of hardened pervious concrete pavement specimens in the laboratory. It is not a method for measuring the permeability of pervious concrete. The specimens can either be prepared in the laboratory or cored from field placements, but not representing field conditions. This part of ISO 17785 also specifies procedures to make and cure hardened pervious concrete samples in the laboratory.

Abstract

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Overview

ISO 17785-1:2016 defines a laboratory test method to determine the infiltration rate of hardened pervious concrete specimens. It specifies specimen preparation, curing, apparatus, pre-wetting and timing procedures, and the calculation required to report infiltration rate (k). This part applies to cylindrical specimens prepared in the laboratory or cored from field placements (minimum 100 mm diameter and 100 mm height) and explicitly states it is not a method for measuring permeability of in-place pavements.

Key topics and requirements

Scope and purpose: Laboratory procedure for measuring infiltration rate of pervious concrete specimens (ISO 17785-1:2016).

Specimen size: Minimum diameter 100 mm and height 100 mm; cores from field must meet these minima.

Sampling: Minimum of three similar specimens per test series.

Specimen preparation:

Two filling options: single-layer pour (typical vertical porosity) or multi-layer pour (more uniform vertical porosity).
Immediate covering after consolidation; mould removal after a minimum curing period of seven days.
Cores: cut full depth of pervious slab when using field specimens.

Apparatus:

Cylindrical mould (100 mm), balance (±5 g), coring machine, shrink wrap (three layers), heat gun, funnel (200 ml capacity), water container (~2 000 ml), stopwatch (0.1 s), potable water.

Pre‑wetting and test procedure:

Specimens are pre-wetted to represent antecedent precipitation; water head maintained between marks at 15 mm and 25 mm from specimen top.
For 100 mm specimens the standard indicates 1 000 ml for pre-wetting and 2 000 ml for the timed infiltration test.
Start timing when test water first contacts the specimen surface; stop when no free surface water remains. Start test within 5 minutes after pre-wetting.

Calculation:

Infiltration rate k is calculated as k = W / (A · t), using the measured volume of infiltrated water (W), specimen cross-sectional area (A) and time (t). Report k in mm/s.

Reporting: Include sample ID, specimen origin (lab-made or field core), preparation and curing details, specimen dimensions and density, age at test, water volume, time and calculated infiltration rate.

Applications and users

ISO 17785-1:2016 is useful for:

Laboratory testing by materials and pavement testing laboratories

Civil and pavement engineers evaluating pervious concrete mixes

Contractors and QA/QC teams verifying mix performance during research, mix development, or acceptance testing

Academics and researchers studying infiltration performance of pervious concrete

Keywords: pervious concrete, infiltration rate, ISO 17785-1:2016, laboratory testing, specimen preparation, pre-wet, shrink wrap, funnel, coring.

ISO 17785-1:2016 PDF

Abstract

Похожие стандарты

Overview

Key topics and requirements

Applications and users

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