WebOct 25, 2024 · The slump flow, air content, and compressive strength of concrete were measured according to Chinese standard GB/T 50080–2016 and GB 50081-2024, as shown in Table 3. After 24-hour curing, concrete samples were demolded and cured in the water until tests. Table 3. The slump flow, air content, and compressive strength of concrete. WebApr 25, 2024 · A polycarboxylic acid water-reducing agent was chosen as the concrete admixture and produced by a building scientific research institute to improve the workability of fresh concretes. The above materials were all mixed with tap water complying with the GB 50081-2002 . The mix proportion of concrete is shown in Table 2. Prismatic specimens of ...
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WebApr 9, 2024 · GB/T 50080; GB/T 50081; GB 50204; DL/T 5150; JTG E30; JTJ 270; JG 237; JG/T 245; JG 3021; ??CECS 38: Drafting Organization: Dalian University of Technology: Administrative Organization: China Association for Engineering Construction Standardization Committee of the concrete structure: WebJun 3, 2024 · GB/T 50081—Test method for mechanical properties of ordinary concrete. This standard specifies the test method for mechanical properties of ordinary concrete. … instant finish all game cheat
GB/T 50081-2002 English Version, GB/T 50081-2002 Standard …
WebJul 1, 2024 · The compressive load was maintained at a loading speed of 5 kN/s, which met the requirements of GB 50081-2024 [52]. The compressive strength of each mix ratio was tested at 7 days, 28 days, 56 days, 90 days and 180 days after casting to evaluate the long-term mechanical properties of FRAC. The long-term mechanical properties of mortars of ... WebAug 13, 2024 · with tap water complying with the GB 50081-2002 [20]. e. mix proportion of concrete is shown in T able 2. Prismatic. specimens of 100 mm ... (GB/T 50746-2008). View. Show abstract ... WebMechanics Performance Test Method"(GB 50081-2002). Specimens are wiped clean, and placed under pressure plates. Add lotus should be continuous and even, and add lotus speed is 0.5-1.0 MPa/s. Record the maximum load F (N), and the bearing pressure f cu of RC can be calculated: (1) where f is the bearing pressure of RC test instant financial card activation