Comparable?

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Author Message Ralph Liebing, RA, CSI, CDT Senior Member Username: rliebing Post Number: 1422 Registered: 02-2003 Posted on Tuesday, September 03, 2013 - 11:17 am:    Grace Dry-Block and BASF Rheopel Plus-- Comparable so one may be substituted for the other? Thanks Liz O'Sullivan Senior Member Username: liz_osullivan Post Number: 110 Registered: 10-2011 Posted on Wednesday, September 04, 2013 - 04:15 pm:    I just realized that you didn't get an answer about Dry-Block and Rheopel Plus. I am not an expert, but I think they're comparable. One thing to keep in mind is that if you specified an admixture in the CMU and also in the mortar, you might want to make sure they use the same manufacturer for the admixture in the mortar as they use in the CMU. Anne Whitacre, FCSI CCS Senior Member Username: awhitacre Post Number: 1374 Registered: 07-2002 Posted on Friday, September 06, 2013 - 01:43 pm:    I specify them as comparables, and agree with Liz -- the additive in the CMU has to be the same additive in the mortar and grout. Ralph Liebing, RA, CSI, CDT Senior Member Username: rliebing Post Number: 1426 Registered: 02-2003 Posted on Friday, September 06, 2013 - 01:52 pm:    Thank you both. Odd that I can't find the BASF product on any of their websites. Is it that new? Richard L Matteo, AIA, CSI, CCS Senior Member Username: rlmat Post Number: 608 Registered: 10-2003 Posted on Friday, September 06, 2013 - 02:07 pm:    Ralph, Try typing in "BASF Admixture Systems" Phil Kabza Senior Member Username: phil_kabza Post Number: 532 Registered: 12-2002 Posted on Friday, September 06, 2013 - 11:05 pm:    Grace takes exception to changes made to ASTM E 514 after 1974 when performance requirements were apparently eased. See the notes in their downloadable specification for Dry-Block. Grace claims performance that significantly exceeds current ASTM E 514 requirements; I do not know if Rheopel Plus makes the same claims.