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...Chemical admixtures for concrete material producer list materials tests division the following are prequalified in accordance with dms dosage rates indicated manufacturer s published recommended use under normal conditions determine actual trial mixes made project anticipated construction temperatures and when using any of combinations group i ii air entraining ensure they added to mix separately may exhibit substantially different performances brands or changing chemistry cement this is usually most noticeable retarding effect at a specified those cases where pre approved admixture does not seem provide satisfactory performance please immediately notify pavements section department reserves right conduct random sampling testing perform audits test reports representatives sample from manufacturing plant terminal shipping container mtd samples verify compliance information on solids content included performing design more contact rigid june type water reducing these reduce quantity mixi...