前言目的:这是Construction Plus的第三版。它取代了1988年和1990年出版的前两个版本。Construction Plus提供了所有CSA施工标准和许多施工相关标准的总结。CSA施工和施工相关标准的用户需要快速准确地确定每个标准的基本内容。标题和简单主题索引本身并不能揭示本标准涵盖的产品或规定的要求。因此，这些总结、关键词和综合指数将使CSA的施工和施工相关标准更易于用户使用。本Plus出版物的用户可能还对CSA电气标准感兴趣，这些标准在electrical Plus（CSA，多伦多，1993）中进行了总结。摘要内容:每一页都概述了标准的目的、涵盖的产品或服务、要求和测试方法，以及一组关键词和完整的参考文献。 第一段概述了标准范围、前言和内容，以及所涵盖的产品和服务清单。其他段落总结了要求和测试方法；适当时，提及包装、文件和标记要求。如果有SI（公制）和码磅（码磅）版本的标准，则摘要及其参考书目涵盖SI版本。注:这些摘要并不取代标准本身，标准本身仍是有关范围和要求的特定信息的唯一来源。使用最后一页的订购表获取本版引用的CSA出版物。关键词和索引词:关键词选自《词根词典》（英国标准协会，1988年第3版）的受控词汇表。之所以选择这本词典，是因为它涵盖了加拿大标准协会涵盖的主题范围，而且它既有法语版本，也有英语版本。 没有与之相当的北美科技词典。然而，词根词典偶尔会偏爱加拿大没有使用的术语。例如，它给出的是“道路”而不是“高速公路”。在这种情况下，词根和其他关键词都会与摘要一起列出。关键词和主要概念用于为每个标准准备一组索引术语，并为本出版物汇编产品Ind-ex。CSA名称和摘要可在适当的索引术语标题下确定；这使得确定不同标准的共同主题变得更容易。标准名称索引为每个摘要提供页码。新版本和新列表在dex的标准名称中注明。

PrefacePurpose: This is the third edition of Construction Plus. It supersedes the previous editions, which were published in 1988 and 1990.Construction Plus provides summaries of all CSA construction Standards and many construction-related Standards. Users of CSA's construction and construction-related Standards need to identify the basic content of each Standard quickly and accurately. Titles and simple subject indices alone do not reveal th e products covered or the requirements stated by the Standard. These summaries, key words and comprehensive indices will thus make CSA's construction and construction-related Standards much more accessible to the user.Users of this Plus publication may also be interested in the CSA electrical Standards, which are summarized in Electrical Plus (CSA, Toronto, 1993).Content of Summaries: Each page summarizes the purpose of the Standard, the products or services covered, the requirements, and the test methodology, together with a set of key words and a full bibliographic citation. The first paragraph comprises a summary of the Standard scope, preface, and content, as well as a listing of the products and services covered. Other paragraphs summarize the requirements and test methodology; where appropriate, the packaging, documentation, and marking requirements are mentioned. Where there are SI (metric) and yard-pound editions of Standards, the summary and its bibliography cover the SI edition.Note: These summaries do not replace the Standards themselves, which remain the only source for specific information on the scope and requirements. Use the Order Form on the last page to obtain CSA publications cited in this edition.Key Words and Index Terms: The key words have been selected from the controlled vocabulary of the Root Thesaurus (British Standards Institution, 3rd edition, 1988). This Thesaurus was chosen because it includes the range of subject matter covered by the Canadian Standards Association and because it is available in French as well as English. There is no equivalent North American technical and scientific thesaurus.The Root Thesaurus, however, occasionally favours terms not used in Canada. For example, it gives ""roads"" rather than ""highways"". In such cases both the Root terms and the other key words are list ed with the summary.Key words and principal concepts have been used to prepare a set of index terms for each Standard and to assemble the Product Ind ex for this publication. The CSA designation and summary may be identified under the appropriate index term headings; this makes it easier to determine what subject is common to the various Stand ards. The Standard Designation Index provides the page number for each summary.New editions and new listings are noted in the Standard Designation In dex.