1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA
2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any
3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. SABS 0120 : Part 3 Section kW-1981 Base PART 3 : GUIDANCE FOR DESIGN SECTION MF CONTENTS Clause I. 1.1 1.1.1 1.2 1.2.1 1.2.2 1.2.3 1.2.4 2. 2.1 3. 4. 5.
4、Page Number PRE-TENDER CONSIDERATIONS . I . Investigations and Administration I . Alterations to services I Documentation . I . General I Subbase not included in design and SABS 1200 ME not in contract document I . Grading of crushed stone aggregates I Tenders . I DESIGN REQUIKEMENTS . I Detail Desi
5、gn . I APPLICABILITY OF OTHER CODES I TEST PROCEDURES . I QUALITY CONTROL AND OTHER CONSIDERATIONS I SABS 0120 : Part 3 Section MF-1981 Base SABS 1200 MF : BASE NOTE: The clause number(s) given at the beginning or after the heading of a clause is/are, unless otherwise stated. the number(s) of the re
6、levant clause(s) of SABS 1200 MP. PRE-TENDER CONSIDERATIONS INVESTIGATIONS AND ADMINISTRATION Alterations to Services. Before the design of a road is completed ensure that provision has been made to deal with all aspects of existing and proposed services. (See Subclause 5.1.2 of SABS 1200 D) and Cla
7、use 2 of Section A and Clause 2 of Section D.) DOCUMENTATION General. Insert a suitable clause in Portion 2 of the project specification or give information on a - drawing or include a suitable item in the schedule of quantities (as appropriate) to deal with each matter listed in Clauses 1 and 2 of
8、section MF of Part 2 of the code. Subbase not Included in Design and SABS 1200 1) not in Contract Document. The design of a carriage- uav mav not reauire a subbase where the natural in situ material is such that it can be compacted -a -. adequately to achieve the functions of the subbase. Laterite o
9、ccurring in certain parts of- the country has this quality. When such conditions are encountered take one of the courses of action recommended in Subclause 3.2.6 of Section ME of Part 2 of the code. 3.2 and 3.3). Provision has been made in SABS 1200 MF. SABS 1200 MG the adoption of gradings that con
10、form to the relevant and the Federation of Stone Crusher Industries regards such gradings as stock gradings. The gradings are readily available from established quarries in most parts of the country but, in the case of areas remote from an established quarry. the gradings may be produced from the ty
11、pes of rock most readily available, by means of a crushing and screening plant of a type in general use. If it is considered that none of the gradings specified in SABS 1083) is suitable for the particular purpose, ensure that aggregate conforming to another grading envelope specified for the projec
12、t will be obtainable at a reasonable price. Tenders. Ensure that, before the start of construction, action has been taken in the matters set out in Subclause 3.1.2(a) and (b) of Section 0. DESIGN REQUIREMENTS DETAIL DESIGN. See TRH 46) for structural design of road pavements. APPLTCABILITY OF OTHER
13、CODES There are no SABS codes of practice that are applicable to base design, but the recommendations of the relevant TRH publications should be taken into account. TEST PROCEDURES All standardized specifications relat Lng to roads (see Annexure A of Part 1 of the code) are framed for use with the m
14、ethods of test laid down in the TMH publications of the NITRR. QUALITY CONTROL AND OTHER CONSIDERATIONS Apply the relevant recommendations of SABS 0157) to the design of a base. l) Earthwork. 2) Subbase. 3) Bituminous surface treatment. 4) Asphalt base and surfacing. 5) Aggregates from natural sources. 6) Asphalt pavement design for national roads, published by the NITRR. 7) Quality management systems. May 1981 Approved by the COUNCTL OF THE SOUTH AFRLCAN BUREAU OF STANDARDS
