PRESIDENT HATTON: The committee on Brick Pavements headed by Mr. Fisk, recommends that no revision of our present brick specification be made until the adoption by the A. S. T. M. of the specification for the brick. MR. FISK: That is correct. PRESIDENT HATTON: What is your pleasure with respect to this report? A MEMBER: I move that it be received and approved. A MEMBER: I second the motion. PRESIDENT HATTON: You have heard the motion; all in favor of this motion say aye; opposed, no. The "ayes" have it. Chapter XII CEMENT CONCRETE PAVEMENTS SPECIFICATIONS COMMITTEE-1926 H. ELTINGE BREED, Chairman. O. LAUERGAARD...... WILLIAM MAKEMSON.. C. R. EGE.... C. M. DOOLITTLE. .New York, N. Y. ... Portland, Ore. .Birmingham, Ala. .Chicago, Ill. .Dundas, Canada COMMITTEE REPORT By H. Eltinge Breed, Chairman Mr. President and members of the Society, I have a progress report to make. The committee felt that inasmuch as the present Concrete specification was only one year old, and as it had not been fully tested to determine its defects, if there are any, it would be better to try it another year to see what may be evolved from its use; and suggestions were asked for with regards to amending it. Three suggestions were received by the committee. One was with regard to a change in the specification covering aggregates; another in regard to incorporating in the new specification, when brought out, the water cement ratio basis of design; and the third was to cut down the number of sizes of expansion joint materials. These changes can be made, but it hardly seemed advisable to change a specification, which, as I have said, had been in practice too short a time to know whether it was suitable or not. The comment the committee have received are to the effect that it is working satisfactorily. DISCUSSION PRESIDENT HATTON: A motion is in order to receive the report of the Committee on Cement Concrete Pavements, approving it, and placing it on file. A MEMBER: I move that the report be handled accordingly. A MEMBER: I second that motion. PRESIDENT HATTON: You have heard the motion; all in favor of this motion say aye; opposed, no. The "ayes" have it. Chapter XIII STONE BLOCK PAVEMENTS SPECIFICATIONS COMMITTEE-1926 JULIUS ADLER, Chairman.. C. D. POLLOCK.. JOHN KLORER. C. HARRY ROGERS. J. J. TOBIN.. .Philadelphia, Pa. .New York City, N. Y. .New Orleans, La. .Rockport, Mass. . Boston, Mass. COMMITTEE REPORT By Julius Adler, Chairman Mr. Chairman and gentlemen of the convention, the Stone Block Pavements Committee has been congratulating itself today on the fact that it is able to report some progress. However, I do not want to consume the time of the meeting by taking up in detail the report of the committee and the proposed revised specifications which have been printed in full. I will simply take a few minutes to comment on the general status of the specification for Stone Block Pavements, as the committee found it during the past year's work. The last general specification for Stone Block Pavements of this Society was adopted by letter ballot in 1920, I believe. Subsequently there have been a number of amendments and corrections made, with the result that the committee found the specification not in good, usable form, and it was accordingly decided to take these specifications and edit and revamp them, to take the various amendments that had been made and consolidate them with the main specification, doing some little condensation and boiling down. Substantially, the work of the committee during the last year consisted in putting the specification in shape for ready use by any member of the Society or any municipality. Incidental to the other work of revision (and I want to lay stress on this fact), the committee has eliminated from the specification a number of points, which, in its judgment, were not proper specification material, but were suggestions to municipalities rather than instructions or specifications to the contractors. While we have an allembracing specification covering the whole range of standard granite blocks, sandstone blocks, shallow resurfacing blocks, with the various types of joint fillers, nevertheless the form is such as to produce a positive specification and not a set of instructions or suggestions to the municipalities which, in the old form, frequently left open to doubt the question of whose function it was to interpret its provisions--the municipality or the contractor. For example, the old form. of specification provides two classes of granite, stating that for extraheavy traffic "This grade of granite should be used," and for medium traffic "This grade of granite should be used," leaving in doubt the basis upon which the contractor should establish his bid. Consequently, we have eliminated all such points and have made it plain in the specification that where there are several different grades of material specified in the comprehensive specification, the engineer is definitely expected to designate which grades of material he intends. to be used on that particular project. We believe the present revised specification is not in final form, but that enough progress has been made in the art of laying stone block pavements to warrant further improvement upon this specification. We have been obliged to leave in the specifications a number of points which are open to further question and to constructive criticism. I might include in that such a point as the use of the toughness test for granite and block pavements. The committee has heard a great deal about the possible elimination of the toughness test as a requirement for granite blocks. The Chairman can say from his personal knowledge of the toughness test as applied to stone, that, despite the fact that it is a standard of the A. S. T. M., it is a very difficult test under which to obtain duplicate or concordant results, and there is ample room for criticism of it as it appears in the specification of the Society. Nevertheless, we felt that it is there as a result of past action and expresses an opinion of this Society and the committee, therefore, did not want to be hasty in removing from the specification something that many members of the Society might consider vital. The specifications that will be printed this year are open to criticism, and I hope the next committee on this subject will receive many constructive criticisms from members of the Society. In conclusion I will say that the committee at a recent meeting considered it advisable to make two changes in the specifications as printed in the advance report. They consist, briefly, in the substitution of the tentative standard specification of the A. S. T. M. for asphalt filler for block pavement, and tar filler for block pavements for the two specifications that now appear in paragraph 12, Sections B and C, which are not in conformity with the present practice and standards with respect to those two materials. I will furnish the data for those corrections later. DISCUSSION PRESIDENT HATTON: You have heard Mr. Adler's interesting report. Are there any questions? MR. POLLOCK: Mr. Adler has spoken about making some changes in the specications so as to conform to the specifications of the A. S. T. M. for asphalt filler and block pavements. As I understand it, this will simply make the description of the asphalt for filler the same. as this Society uses in the sheet asphalt and asphalt concrete specifi cations. In other words, we will get the same result as at present, and it will simply make the language the same in all. PRESIDENT HATTON: Yes; that is it. The members have this advance report in their hands. The question now before the Society is whether this revised specification shall go to the Society in the form of a letter ballot. Is that right? MR. ADLER: Yes; that is right. PRESIDENT HATTON: Is there any discussion on this point? The Chair has not heard a motion. MR. POLLOCK: I move that the specification, as amended here, go before the Society in the form of a letter ballot. A MEMBER: I second the motion. PRESIDENT HATTON: You have heard the motion; all in favor of it will make it known by saying aye; opposed no. The "ayes" have it. Report of Canvassing Committee of votes cast by Letter Ballot. Vote on the adoption of the proposed specifications for Stone Block Pavements as submitted to the 1926 convention. Yes, 111; Noes, 3. E. R. KINSEY, |