EN 1015-9:1999

Methods of test for mortar for masonry - Part 9: Determination of workable life and correction time of fresh mortar

This European Standard specifies methods for determining the workable life and correction time of freshly mixed mortars (in the following referred to as fresh mortars). Method A is a method for the determination of the workable life of general purpose masonry or rendering mortars, including those containing mineral binders and both dense and lightweight aggregates. Methods B and C are methods for the determination of the workable life and correction time for thin layer mortars.

Prüfverfahren für Mörtel für Mauerwerk - Teil 9: Bestimmung der Verarbeitbarkeitszeit und der Korrigierbarkeitszeit von Frischmörtel

Diese Europäische Norm legt Verfahren zur Bestimmung der Verarbeitbarkeitszeit und der Korrigierbarkeitszeit von frisch angemischten Mörteln (im folgenden kurz "Frischmörtel gennant) fest. Verfahren A ist ein Verfahren zur Bestimmung der Verarbeitbarkeitszeit von Normalmörteln (Mauer- oder Putzmörtel) einschließlich derjenigen aus mineralischen Bindemitteln und sowohl dichten Zuschlägen als auch Leichtzuschlägen. Verfahren B und C sind Verfahren zur Bestimmung der Verarbeitbarkeitszeit und der Korrigierbarkeitszeit von Dünnbettmörteln.

Méthodes d'essai des mortiers pour maçonnerie - Partie 9: Détermination de la période d'ouvrabilité et du temps ouvert du mortier frais

La présente norme européenne prescrit des méthodes pour déterminer la période d'ouvrabilité et le temps ouvert de mortiers fraîchement gâchés (désignés ci-après par mortiers frais). La méthode A est une méthode de détermination de la période d'ouvrabilité de mortiers pour maçonnerie ou à enduire d'usage général, y compris les mortiers contenant des liants minéraux et des granulats lourds et légers. Les méthodes B et C sont des méthodes de détermination de la période d'ouvrabilité et du temps ouvert pour des couches minces de mortier.

Metode preskušanja zidarske malte - 9. del: Določevanje časa obdelavnosti in popravljalnega časa sveže malte

General Information

• Status: Published
• Publication Date: 17-Aug-1999
• Withdrawal Date: 30-Dec-2001
• ICS: 91.100.10 - Cement. Gypsum. Lime. Mortar
• Technical Committee: CEN/TC 125 - Masonry
• Drafting Committee: CEN/TC 125/WG 4 - Test methods
• Current Stage: 9060 - Closure of 2 Year Review Enquiry - Review Enquiry
• Start Date: 02-Dec-2025
• Completion Date: 02-Dec-2025
• Directive: 305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
• Directive: 89/106/EEC - Construction products
• Mandate: M/128 - Mandate to CEN/CENELEC concerning the execution of standardization work for harmonized standards on products for concrete, mortar and grout
• Ref Project: SIST EN 1015-9:2001 - Methods of test for mortar for masonry - Part 9: Determination of workable life and correction time of fresh mortar

Relations

• Amended By: EN 1015-9:1999/A1:2006 - Methods of test for mortar for masonry - Part 9: Determination of workable life and correction time of fresh mortar
• Effective Date: 22-Dec-2008

Overview

EN 1015-9:1999 is a European Standard developed by CEN that defines methods for testing mortar for masonry, specifically focusing on the workable life and correction time of fresh mortar. This standard applies to freshly mixed mortars used in masonry and rendering applications, including mortars with mineral binders and various types of aggregates such as dense and lightweight materials. By standardizing these test methods, EN 1015-9 ensures consistent assessment of mortar usability during construction.

Key Topics

• Workable Life of Mortar
  The standard specifies Method A for measuring the workable life of general-purpose masonry or rendering mortars. This method helps determine the time frame during which the mortar remains plastic and easy to apply.

• Correction Time of Fresh Mortar
  For thin layer mortars, Methods B and C detail the procedures for assessing both the workable life and the correction time, which is the period during which changes can still be made to the mortar composition or properties.

• Scope of Mortars Covered
  EN 1015-9 includes mortars containing various binders such as cement, gypsum, and lime, combined with different aggregates, ensuring broad applicability across masonry projects.

• Test Method Precision
  The document standardizes how to quantitatively measure mortar properties to enable objective comparison and quality control throughout the construction process.

Applications

• Construction Quality Control
  Ensuring mortar maintains optimal workability during application reduces defects and improves masonry durability.

• Masonry and Rendering Projects
  Contractors and material suppliers can use these test methods to verify mortar performance, particularly for large-scale projects where timing and consistency matter.

• Material Development and Testing
  Researchers and manufacturers use the standard for developing improved mortar formulations with predictable workable life and correction time.

• Training and Certification
  The methods provide a technical basis for training skilled personnel in mortar handling and application best practices.

Related Standards

• EN 1015 Series
  EN 1015-9 complements other parts of the EN 1015 series, which cover testing of mortar properties such as strength and consistency.

• Cement and Lime Standards
  Standards related to cement and lime materials used in mortars are relevant to understanding binder characteristics affecting workable life.

• Construction Material Testing Standards
  EN 1015-9 works alongside broader construction material standards to ensure comprehensive quality and performance assessment.

---

By following EN 1015-9:1999, professionals in the construction and material industries can reliably determine and control the workability window of fresh mortars, leading to enhanced masonry work quality and efficiency. This standard is an essential reference for anyone involved in mortar testing, formulation, and application.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Prüfverfahren für Mörtel für Mauerwerk - Teil 9: Bestimmung der Verarbeitbarkeitszeit und der Korrigierbarkeitszeit von FrischmörtelMéthodes d'essai des mortiers pour maçonnerie - Partie 9: Détermination de la période d'ouvrabilité et du temps ouvert du mortier fraisMethods of test for mortar for masonry - Part 9: Determination of workable life and correcti
...