BC-300 Cement Length‑Change Meter (New‑Style Length‑Change Meter), Dual‑Column and Single‑Column Models
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Description
Product Introduction
It is suitable for determining the drying shrinkage rates of cement mortar and cement paste specimens at various ages, in accordance with the requirements of JC/T 603-2004 “Test Method for Drying Shrinkage of Cement Mortar,” JTGE 30-2005 “Test Procedures for Cement and Concrete in Highway Engineering” (Clause T0511), JGJ/T 70-2009 “Test Methods for Basic Properties of Building Mortar,” GB/T 11972-1997 “Test Method for Drying Shrinkage of Aerated Concrete,” and GB/T 14685-2011 “Gravel and Crushed Stone for Construction.” It can also be used to determine the expansion rate, limiting expansion rate, and self‑stress value of such cements, in compliance with the requirements of JC/T 313-2009 “Test Method for Expansion Rate of Expansive Cement” and JC/T 453-2004 “Test Method for Physical Properties of Self‑Stressing Cement.”
Technical Specifications
| Project | Specific parameters |
| Measurement range | 156-305mm |
| Standard rod length | 158±0.2mm, 300±0.2mm |
| Measuring instrument | Dial indicator, range 0–10 mm, accuracy (graduation value) 0.01 mm |
| Coaxiality between the upper and lower clamping holes and the support | <0.25mm |
| Gross weight | Approximately 5 kg |
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BC-300 Cement Length‑Change Meter (New‑Style Length‑Change Meter), Dual‑Column and Single‑Column Models