AS 1— Australian Standard ® Formwork for concrete. Part 1: Documentation and surface finish. A S 3 6 1 0. 1 — 2 0 1 0. A c c e s s e d b y. C U R T. Formwork includes the forms on or within which the concrete is poured and the frames .. Formwork should comply with AS Formwork. This paper discusses the relevance of a revised draft of Australian Standard AS Formwork for Concrete to the New Zealand situation. Although.
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We are a non-profit group that run this website to share documents. We need your help to maintenance this website. Please help us formork share our fofmwork with your friends. For,work was approved on behalf of the Council of Standards Australia on 13 October This Standard was published on 2 February The following are represented on Committee BD Standards Australia wishes to acknowledge the participation of the expert individuals that contributed to the development of this Standard through their representation on the Committee and through the public comment period.
To maintain their currency, all Standards are periodically reviewed, and new editions are published. Between editions, amendments may be issued. Standards may also be withdrawn. It is important that readers assure themselves they are using a current Standard, which should include any amendments that may have been published since the Standard was published.
Formwork – Standards Australia
Detailed information about Australian Standards, drafts, amendments and new projects can be found by visiting www. AS first published in AS — revised and redesignated, in part, AS No part of this work may be reproduced or copied in any form or by any means, electronic or mechanical, including photocopying, without the written permission of the publisher.
The objective of this Standard is to provide formwork architects; engineers; builders and construction contractors; and formwork designers, suppliers and contractors with requirements for the documentation, fabrication, erection and stripping of formwork, as well as for the assessment and evaluation of completed surface quality and repairs. The full review of AS has not been completed and it was considered desirable to issue the Standard in two Parts: Documentation and surface finish this Standardwhich focuses on surface finish and covers various types of documentation applicable to formwork.
Sections 2, 3, 4 and 5 in this Standard Part 1 supersede Sections 2, 3 and 5, as well as Clause 4.
A Commentary has been added to Table 3. Photographic charts for the assessment of colour and surface finish are provided in the appendices. Additional copies of these charts are available as AS Supp 1, Formwork for concrete—Blowhole and colour evaluation charts Supplement to AS — Statements expressed in mandatory terms in notes to tables are deemed to be requirements of this Standard. It also sets out the requirements ffor the fabrication, erection, inspection and stripping of formwork.
The concrete surface finish shall comply with Section 3. The fabrication, erection, inspection and stripping of formwork shall comply with the requirements and procedures set out in Section 4. Procedures for evaluation of the off-form or repaired concrete surface shall comply forwork Section 5.
This Standard has limited applications for unformed concrete surfaces e. General requirements Part 3: Prefabricated and tube-and-coupler scaffolding Part 6: The term load is also often used to describe direct actions. A footing may be purpose built, such as a simple sole plate, concrete footing or pile. Alternatively, an element may be used as a footing.
It includes the form face and framing. It consists of a form and, where appropriate, falsework, form bracing and form ties. Limit state separate desired state no failure from undesired state failure. Examples of permanent forms include horizontal precast concrete elements and profiled steel sheeting. This term includes undisturbed supports and equipment for backpropping and reshoring.
Formwirk does not include applied finishes such as coatings or paint. The formwork design shall comply with the project and construction documentation. The foor documentation shall contain a statement that the formwork design and documentation complies with AS Reference to information sources such as geotechnical reports should also be included.
It applies to— a the surface finish of formed and stripped concrete surfaces; b the requirements for the project documentation related to foor finish as listed in Section 2; and c the provisions and use of test panels for both cast in situ concrete and precast concrete.
The physical qualities of each of these classes, and their applicability, shall be as specified in Table 3. Where colour control is incorporated this shall be denoted by the suffix C following the surface finish class numeral see Note 1. Refer to Clause 3. Class 1 shall not be specified for whole elevations or extended surface areas. It is essential that test panels take this into account. If the class is not specified in the project documentation, the quality of the off-form surface is not required to be superior to Class 3.
These tolerances apply to the as-cast formed surface prior to surface treatment, if any. Tolerances in AS take precedence where more stringent than those specified in this Section. Surface treatment includes applied finishes, acid etching, sandblasting and polishing. Other than for those cases where strain movement of the permanent structure is possible, including the effects of prestress and post-tensioning, the deviations shall be measured on the surface of the concrete after the removal of any forms or supports and before any surface treatment.
Where strain movement of the concrete is possible, deviations shall be measured prior to removal of any forms or supports or application of prestress or post-tensioning. Evaluation of the completed work shall comply with the requirements of Clause 5. In such cases, a practical procedure should be formdork in the project documentation.
As 3610-1995 Formwork for Concrete
The value of prestress or post-tensioning strain hog and shortening is influenced by variation in material properties in a similar way to that foemwork other permanent load effects see AS Where the opposite faces are of different classes then the face with the higher quality shall take precedence in the checking.
Tolerance values more stringent than those given in Table 3.
In particular circumstances, for small areas, more stringent tolerances, which are achievable, may be specified in the project documentation. Angular tolerance for squareness shall be expressed in terms of the distance by which a shorter side of the precast unit deviates from a straight line perpendicular to the longer side and passing through the corner of the unit.
If the surface is not a rectangle these three corners shall be those points on the surface that are the corners of a rectangle covering the greatest possible surface area of the unit. The sequence cpncrete checking the above tolerances is defined in Clause 5. TBS To be specified—these are mandatory project documentation requirements for all work where the particular class of surface finish has been specified NA Not applicable—these are matters that are not applicable to the particular class of surface finish OPT Optional—these are matters that may be included in the project documentation SIA Specify if cojcrete are mandatory where the particular feature is included in the project documentation ACC Acceptable—repairs to these classes are acceptable.
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