Self Consolidating 混凝土, 混凝土 Flowability

Self-Consolidating 混凝土

Self-consolidating concrete (SCC) is a highly flowable, non-segregating concrete mix that when used correctly, 减少劳动力, time, 和 the possible source of technical 和 quality control issues. Because this concrete mix prevents voids 和 honeycombing, it is commonly used in structural 和 architectural concrete elements where surface smoothness is important.

当倒, proper SCC flows very easily with 和 around the framework to closely follow the shape 和 surface texture of the mold. By testing self-consolidating concrete, you can eliminate it’s flowability 和 therefore the need for vibrating or tamping after the initial pour.

Self-consolidating concrete should be tested for flow rates, 通过能力, levels of aggregate segregation resistance, 和填充评价. SCC is designed in such a way that compaction 和 a high proportion of water are not required to become fluid. 因此, initial testing is vital to lasting success.

The flowability of SSC is most commonly measured using the slump flow testing method. Three variables of the mix are measured during this assessment:
流动性: ensuring that the concrete flows easily into the finest details of the formwork or mold
通过能力: making sure the mix is able to flow through tight spaces
稳定性: the quality of staying together in a homogenous mix even at very high slumps
因此, concrete slump tests are vital to ensure that self-consolidating concrete is able to perform onsite 和 have the qualities it needs to succeed.

洪堡 offers a variety of tools to assist testing self-consolidating concrete to ensure a less labor-intensive task.

渗透装置: Provides a rapid assessment of static segregation resistance of self-consolidating concrete following the st和ard ASTM C1712.
j形环测试仪: 使用d to determine the 通过能力 of self-consolidating concrete according to ASTM C1621.
j形环测试仪, HDPE Base Plate:
The j形环测试仪 but with inscribed concentric circles to perform slump flow tests. 遵循标准 ASTM C1621 和 ASTM C1611.
静态分离柱: 措施 the coarse aggregate content in self-consolidating concrete following the st和ard ASTM C1610 to determine the potential for static segregation.
v型漏斗流动性测试: Evaluates the segregation resistance of self-consolidating concrete through flow speed according to EN 12350
L-Box流动性试验:
Assess flow 和 possibility of self-consolidating concrete following the st和ard EN 12350.