In this paper, the effects of different stone powder content (5%, 10%, 15%, 20%, 25%) of dolomite manufactured sand on the workability and mechanical properties of cement were studied.
WhatsApp: +86 18221755073Materials 2022, 15, 4817 2 of 23 The limit value of stone powder is 10% according to the national standard in China, but the content of artificial sand in actual production is usually as high as ...
WhatsApp: +86 18221755073machine-made sand concrete with stone powder content, the P.O 42.5 cement from Qijianshang Concrete Station in Gansu Province was used in the experiment[9]. The
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WhatsApp: +86 18221755073of stone powder in mec hanism sand is an alyzed in this paper. It expounds the applic ation prospect of the mechanism sand re placing the natural sand t o produce all kinds of con crete, and then ...
WhatsApp: +86 18221755073Natural sand resources are increasingly limited (Bendixen et al., 2019), and enormous amounts of manufactured sand are desperately needed to replenish them. During the manufacturing process of manufactured sand, a substantial volume of stone powder (SP), with the same composition as the mother rock and a particle size of <75 …
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WhatsApp: +86 18221755073The MC0 as the control mixture, and the water/binder ratio and sand ratio are 0.4 and 45%, respectively. The content of TSP form tunnel slag is set as a variable, and equal mass replaces machine-made sand form tunnel slag. The content of TSP in machine-made sand are 0%, 4%, 8%, and 12%, respectively.
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WhatsApp: +86 18221755073Results showed the manufactured sand mortar had the highest compressive strength (39.7 MPa) and lowest water absorption (3.50 %) at 24 h, indicating the best macroscopic performance. This was due to the manufactured sand's stone powder content improving SPLCC binding and accelerating calcium carbonate accumulation in the ITZ.
WhatsApp: +86 18221755073In this range, the chloride ion permeability of machine-made sand concrete decreases with the increase of the stone powder content, and the dynamic elastic modulus decreases slightly with the ...
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WhatsApp: +86 18221755073Abstract Concrete with manufactured sand (MSC) requires adequate compressive properties, which may be caused by stone powder. This present study investigated the effect of different stone powder content (0%, 3%, 5%, 7%, 9% and 11%) on compressive properties of MSC. The properties of fresh MSC were evaluated by …
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WhatsApp: +86 18221755073Guang Luo, Jicheng Xie, Zheng Chen et al.-This content was downloaded from IP address 157.55.39.220 on 29/12/2021 at 15:31. ... By changing the amount of stone powder in the machine-made sand, the ratio of cement to water and sand to grout, the change in the tensile value of the steel bar in ...
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WhatsApp: +86 18221755073DOI: 10.1016/j.jclepro.2022.134146 Corpus ID: 252358263; Cleaner production of high-quality manufactured sand and ecological utilization of recycled stone powder in concrete @article{Shen2022CleanerPO, title={Cleaner production of high-quality manufactured sand and ecological utilization of recycled stone powder in concrete}, author={Weiguo Shen …
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