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Automated Measurement and Control of Concrete Properties in a Ready Mix Truck with VERIFI.
| 题名： | Automated Measurement and Control of Concrete Properties in a Ready Mix Truck with VERIFI. |
| 作者： | Khayat, K. H.; Libre, N. A. |
| 关键词： | Aggregate; Civil Engineering; Concrete; Concrete Industry; Construction; Construction Equipment; Control Systems; Dump Truck; Durability; Field Performance; Industrial Safety; Maintenance; Pavement Co |
| 摘要： | In this research, twenty batches of concrete with six different mixture proportions were tested with VERIFI to evaluate 1) accuracy and repeatability of VERIFI measurements, 2) ability of VERIFI to adjust slump automatically with water and admixture, and 3) effects on concrete properties when water and admixture are added continuously during transit instead of adding whole at the plant or jobsite. For each batch, concrete was sampled every 30 minutes up to 90 minutes and tested for slump, temperature, air content, unit weight, water content, bleeding (select batches), and rheology (select batches). Cylindrical concrete specimens were cast at 90 minutes and were tested for compressive strength at 3 and 28 d (or 3 and 14 d for IDOT mixes). |
| 报告类型： | 科技报告 |
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