Effect mechanism of slag activity on the basic tensile creep of alkali-activated slag mortar

Zhang, Zhiliang; Zhang, Jianmei; Yang, Xiao‐Jun; Ning, Yingjie; Ji, Tao

doi:10.1016/j.jobe.2023.105903

Cited by 2 publications

(1 citation statement)

References 57 publications

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“…In recent years, fly ash, slag powder, and volcanic ash are used as cementitious materials in concrete [8][9][10][11][12][13][14][15][16]. These mineral admixtures can improve the mechanical strengths when the curing temperature is higher than 40 • C and the curing age is higher than 28 days [17].…”

Section: Introductionmentioning

confidence: 99%

Mechanical Strengths of Alkali-Activated Blast Furnace Slag Powder with Different Alkali Activators and Plant Fibers

Zhu

Song

et al. 2023

Coatings

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In this paper, the influence of water glass types, the modulus of water glass, the alkali content, the water consumption, and plant fibers on the mechanical strengths of alkali-activated blast furnace slag powder (BFS) is investigated. Moreover, the fiber types and pretreatment on the plant fibers and the measuring temperature on the performance of alkali-activated BFS are further considered. Results indicate that BFS activated by potassium silicate shows higher mechanical strengths than that activated by sodium silicate. The alkali-activated BFS with alkali treatment on fibers is the most advantageous. The modulus of alkali leads to decreasing the compressive strength. A total of 35% water consumption is the most beneficial to the specimens’ flexural and compressive strengths. Samples with 14% potassium silicate show the maximum mechanical strength. Alkali-activated BFS with 1% wheat straw fibers in addition by total volume represents the maximum mechanical strength. The alkali-activated BFS with alkali treatment on fibers is the most advantageous. The addition of potassium silicate can improve the flexural and compressive strengths by the maximum values of 30.4% and 16.8% compared to specimens with sodium silicate. A total of 35% water consumption can increase the flexural and compressive strengths by 33.8% and 32.7%.

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