James Kenneth Koelliker
Engineers at Mintons Lndg, Manhattan, KS
License number
Colorado 11297
Issued Date
Sep 30, 1972
Renew Date
Apr 1, 2010
Expiration Date
Oct 31, 2013
Type
Professional Engineer
Address
Address
3500 Mintons Lndg, Manhattan, KS 66503
Personal information
See more information about James Kenneth Koelliker at radaris.comName
Address
Phone
3500 Mintons Lndg, Manhattan, KS 66503
Manhattan, KS
Professional information
See more information about James Kenneth Koelliker at trustoria.com
Method And Apparatus For The Rapid Determination Of Water-Cement Ratios
Method And Apparatus For The Rapid Determination Of Water-Cement Ratios
US Patent:
5396790, Mar 14, 1995
Filed:
Apr 13, 1994
Appl. No.:
8/227398
Inventors:
James K. Koelliker - Manhattan KS
Mustaque Hossain - Manhattan KS
Mustaque Hossain - Manhattan KS
Assignee:
Kansas State University Research Foundation - Manhattan KS
International Classification:
G01N 1506, G01N 2159
US Classification:
73 6172
Abstract:
An improved turbidimeter apparatus (10) is provided for accurate, rapid, field testing of fresh concrete mixes in order to determine the water-cement ratios thereof. The apparatus (10) includes an upright sieve chamber (12) adapted to receive a concrete sample (56), together with a turbidimeter (14); a recirculation system (16) is interposed between the chamber (12) and turbidimeter (14), and permits separation of the aggregate from the concrete sample (56) and formation of a dilute dispersion suitable for turbidimetric determinations. In use, dilute water-cement dispersions are created using the apparatus (10) and turbidimeter determinations are made via turbidimeter (14); these readings can then be used with standard, previously developed water-cement ratio versus turbidimeter reading curves to accurately measure the initial water-cement ratios of concrete mixes.