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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Continuously moving formwork—system of forms where a mechanism is provided to continuously relocate the form surface as the concrete is placed also known as slipform. The safe working load capacities. It is important that readers assure themselves they are using a current Standard, which should include any amendments which may have been published since the Standard was purchased.
Limit state load, S? Where there is a choice of load direction or magnitude for the specified loads, the most adverse combination shall be selected. It shall be measured in 10 m sections, with each overlapping by 5 m, and with the variations from the straight determined by measurements at the ends and middle of each 10 m section see Figure 5.
The loads given in Clause 4. Consideration shall also be given to the loads imposed by stacked materials during Stage II. The physical qualities of each of these classes, and their applicability, shall be as specified in Table 3. 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.
This Standard has limited applications for unformed concrete surfaces e. The appropriate test results may be used as follows: Purchase the entire entire publication at the link below: This Standard does not apply to unformed concrete surfaces, e. Information about any permanent formwork systems, together with any limitations on deflections and any special requirements for their erection and concreting.
Second editi on Alternatively the foundation material may be modified to satisfy the requirements of the formwork documentation.
Equation 8 of Table 4. AS — revised and redesignated, in part, AS Thank you for interesting in our services. Subject to close scrutiny.
Where on-site foundation conditions differ from those described in the formwork documentation a revised design shall be obtained. A1 Statements expressed in mandatory terms in notes to tables are deemed to be requirements of this Standard.
For an accumulated sample size of 30 or more comprising current tests plus previous similar tests, the coefficient of variation shall be the lower of that taken from Table A2 and the value calculated by the following equations: The relevant deviations shall be calculated separately from those defined in ab and c above.
Where the sample is less than the population the sample shall be randomly selected and the testing procedure shall be known as sample evaluation. Details of any special-class concrete required under Clause 3.
Colour control The tonal range of the accepted test panel shall be determined by the use of either the tonal scale or the other means referred to in Clause 3.
The deviation is calculated as the reading at the middle of the section subtracted from the mean of the readings at gormwork two ends of the section. Proprietary item—an item made in quantity production for general use in formwork assemblies, and whose load capacity has been proven by analysis or test. The face step spacing shall be measured from visible step to step on the concrete surface. Out-of-squareness may affect measurement of tolerances in linear dimensions.
Horizontal impact I Where construction activity is likely to cause impact to the completed formwork assembly it shall be designed to sustain a horizontal force I.
Any precautions to be observed in its use. This Standard incorporates Amendment No. Stage II—during placement of concrete.
ACC Acceptable—repairs to these classes are acceptable and shall not be excluded by the specification. Please help us to share our service with your friends. The technique of formwork fabrication, timing, erection, cormwork and removal can affect the structural integrity, accuracy, surface finish and long term deformation of both the concrete elements it is used to produce and the previously cast portions of the permanent structure.
These tolerances apply to the as-cast formed surface prior to surface treatment, if any. In the concgete of site recording, local temperatures are usually available from the Australian Bureau of Meteorology. Keeping Standards up-to-date Standards are living documents which reflect progress in science, technology and systems. Hydrostatic pressure—theoretical pressure which would be exerted on the forms by a fluid of the same specific gravity as plastic concrete.
Consequently requirements for limit state or permissible stress loads are not provided. Camber—the intentional curvature of formwork prior to concrete placement to compensate for the deflection of the formwork or the permanent structure under load. To be acceptable the surface of the completed work shall show a consistent surface texture within the acceptable variation of the surface treatment in which the test panel is included.
Reference to gormwork sources such as geotechnical reports should also be included. This Standard does not apply to unformed cconcrete surfaces, e.
AS Australian Standard? This term includes undisturbed supports and equipment for backpropping and reshoring. It is recommended that a minimum sample size of 3 be used. Where the opposite faces are of different classes then the face with the higher quality shall take precedence in the checking.