{"title":"Discussion of “Stability of Fresh Concrete Mixes”","authors":"G. S. Vincent","doi":"10.1061/JCCEAZ.0000184","DOIUrl":"https://doi.org/10.1061/JCCEAZ.0000184","url":null,"abstract":"","PeriodicalId":271903,"journal":{"name":"Journal of the Construction Division","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1967-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132944835","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Erratum for “Computer Program for Leveling Resource Usage”","authors":"Robert V. Galbreath","doi":"10.1061/JCCEAZ.0000174","DOIUrl":"https://doi.org/10.1061/JCCEAZ.0000174","url":null,"abstract":"","PeriodicalId":271903,"journal":{"name":"Journal of the Construction Division","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1966-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122146953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The production of asphalt follows procedures different than those used in most manufacturing. In the asphalt pavement industry, the owners' engineer (such as state or city) describes the product, not in terms of an end product but in terms of materials and processing methods. Also, the owners' engineering forces conduct the control on the materials and finished product. The problems encountered in controlling the quality of asphalt pavement and the efforts some organizations are making in assuming responsibility for control of quality of the asphalt pavement they produce is described. Automatic batching equipment that can be used to produce more uniform asphalt mixtures and automatic screed controls that permit placing the pavement to a reference profile such as a stringline is examined.
{"title":"Quality Control of Asphalt Pavement","authors":"C. R. Foster","doi":"10.1061/JCCEAZ.0000168","DOIUrl":"https://doi.org/10.1061/JCCEAZ.0000168","url":null,"abstract":"The production of asphalt follows procedures different than those used in most manufacturing. In the asphalt pavement industry, the owners' engineer (such as state or city) describes the product, not in terms of an end product but in terms of materials and processing methods. Also, the owners' engineering forces conduct the control on the materials and finished product. The problems encountered in controlling the quality of asphalt pavement and the efforts some organizations are making in assuming responsibility for control of quality of the asphalt pavement they produce is described. Automatic batching equipment that can be used to produce more uniform asphalt mixtures and automatic screed controls that permit placing the pavement to a reference profile such as a stringline is examined.","PeriodicalId":271903,"journal":{"name":"Journal of the Construction Division","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1966-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125792394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Discussion of \"Who Pays for the Unexpected in Construction? Report of the Committee on Contract Administration of the Construction Division, ASCE\"","authors":"John D. Bristor","doi":"10.1061/JCCEAZ.0000103","DOIUrl":"https://doi.org/10.1061/JCCEAZ.0000103","url":null,"abstract":"","PeriodicalId":271903,"journal":{"name":"Journal of the Construction Division","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1964-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115702671","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Discussion of “Analysis of Construction Education Survey”","authors":"H. Rubey","doi":"10.1061/JCCEAZ.0000080","DOIUrl":"https://doi.org/10.1061/JCCEAZ.0000080","url":null,"abstract":"","PeriodicalId":271903,"journal":{"name":"Journal of the Construction Division","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1963-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126643069","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The preparation of a preliminary outline, listing all data apt to be required, is a basic requirement for field estimating and cost control programs. Preparation of a formal classification of items of work should follow, considering adequate description division and proper indexing. Method of tabulation of indirect and overhead expense should be coordinated between various departments and projects. Periodic recapitulation of quantity and cost data can be keyed for efficient reference. Formal reports indicate independent courses of activity and are prepared at intervals to indicate trend. A labor productivity analysis will indicate variances between different projects and areas, based on a common standard. Recommended data for field estimates includes project records and reports, field manpower and equipment estimates, information from vendors and subcontractors, initial project estimate, data from previous projects, and handbook information. Application of field estimates includes construction alternates, analysis of extra work and revisions, and project cost estimates. A coordinated cost control program will assure adequate permanent property records and adequate information for productivity analysis, field estimating, and future estimating requirements.
{"title":"Field Estimating and Cost Control","authors":"John R. Ice","doi":"10.1061/JCCEAZ.0000069","DOIUrl":"https://doi.org/10.1061/JCCEAZ.0000069","url":null,"abstract":"The preparation of a preliminary outline, listing all data apt to be required, is a basic requirement for field estimating and cost control programs. Preparation of a formal classification of items of work should follow, considering adequate description division and proper indexing. Method of tabulation of indirect and overhead expense should be coordinated between various departments and projects. Periodic recapitulation of quantity and cost data can be keyed for efficient reference. Formal reports indicate independent courses of activity and are prepared at intervals to indicate trend. A labor productivity analysis will indicate variances between different projects and areas, based on a common standard. Recommended data for field estimates includes project records and reports, field manpower and equipment estimates, information from vendors and subcontractors, initial project estimate, data from previous projects, and handbook information. Application of field estimates includes construction alternates, analysis of extra work and revisions, and project cost estimates. A coordinated cost control program will assure adequate permanent property records and adequate information for productivity analysis, field estimating, and future estimating requirements.","PeriodicalId":271903,"journal":{"name":"Journal of the Construction Division","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1963-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121348177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Bridge in Portland, Ore, is 760 ft long together with approaches, and carries 6-lane roadway; river crossing has two deck truss approach spans and double-leaf bascule span with 220 ft clear horizontal opening; pile driving for four piers; pier foundations were built one at time to permit maximum reuse of cofferdam materials.
{"title":"Construction of Morrison Bridge","authors":"R. Bane","doi":"10.1061/JCCEAZ.0000023","DOIUrl":"https://doi.org/10.1061/JCCEAZ.0000023","url":null,"abstract":"Bridge in Portland, Ore, is 760 ft long together with approaches, and carries 6-lane roadway; river crossing has two deck truss approach spans and double-leaf bascule span with 220 ft clear horizontal opening; pile driving for four piers; pier foundations were built one at time to permit maximum reuse of cofferdam materials.","PeriodicalId":271903,"journal":{"name":"Journal of the Construction Division","volume":"107 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1960-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131583221","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Studies of blast-induced cracking of residential structures have concluded that peak particle velocity is the best index of damage. These investigations are compared to show how differences in target structures, crack location, wall covering, recorded motion, gage location and shot characteristics affect thresholds of cracking. Some 1,400 time histories of construction and surface coal mining blasts in Illinois are compared to differentiate typical mining and construction blasts. The difference between free and restrained response is investigated, and an analytical model for each type of response is presented and developed with experimental data. These models are employed to show the importance of the frequency of the excitation motions, local strains and material properties.
{"title":"Cracking and Construction Blasting","authors":"C. Dowding, P. Corser","doi":"10.1061/JCCEAZ.0000951","DOIUrl":"https://doi.org/10.1061/JCCEAZ.0000951","url":null,"abstract":"Studies of blast-induced cracking of residential structures have concluded that peak particle velocity is the best index of damage. These investigations are compared to show how differences in target structures, crack location, wall covering, recorded motion, gage location and shot characteristics affect thresholds of cracking. Some 1,400 time histories of construction and surface coal mining blasts in Illinois are compared to differentiate typical mining and construction blasts. The difference between free and restrained response is investigated, and an analytical model for each type of response is presented and developed with experimental data. These models are employed to show the importance of the frequency of the excitation motions, local strains and material properties.","PeriodicalId":271903,"journal":{"name":"Journal of the Construction Division","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128451436","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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