Publisher's Synopsis
Excerpt from Specifications for Sewer Construction Adopted October 8, 1914
The sub-committee on Specifications for Sewers has further considered Articles 206 and 211 of its report, and the proposed amendments thereto, all of which were omitted from the Specifications for Sewer Construction, as adopted by the society at its last convention.
Article 206. - The amendment proposed by Mr. Parmley would materially reduce the specified thickness of reinforced concrete sewer pipes of large sizes. After careful consideration we are unable to recommend at this time the adoption of the dimensions proposed in the amendment. We also find the subject matter of the proposed amendment, covering the depth and details of socket and joint ends and of reinforcement material, is sufficiently covered by items of the specifications heretofore adopted.
We do, however, recommend that column 4 of Article 206, as proposed by the sub-committee, be omitted.
Article 211. - The amendment offered by Mr. Parmley proposes three different methods of applying crushing tests to reinforced cement concrete pipes, and specifies a different crushing load for each method. The sub-committee has considered these, and reached the opinion that proposed methods 1 and 2 are too complex, and hardly practicable, and that method 3, which substantially complies with the method proposed by the committee, specifies crushing loads which, in our opinion, are too low and unsafe.
The sub-committee has further considered Article 211 and has reached the additional conclusion, that the test pressures which the pipes shall withstand should be specified with more definiteness than at present. With this end in view it recommends the insertion of the words: "without collapse" before the words, "the following pressures," at the ends of both the first and second paragraphs of Article 211.
Otherwise, the committee recommends the adoption of Articles 206 and 211 as originally presented by it, with the omission of column 4 of tabular socket dimensions in Article 206.
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