Research on the green preparation of manufactured sand by
For instance, the predominant rock type in the Gansu region of China is tuff; analyzing the characteristics of the most abundant tuff in Gansu, China, and proposing reasonable key processes and parameters for the preparation of tuff-manufactured sand is important.
Charlar en LíneaResearch on the green preparation of manufactured sand by
Compared with river sand, manufactured sand exhibits an inferior particle shape and gradation and the presence of stone powder. Based on the Bingham model, Westerholm
Charlar en LíneaInfluence of manufactured sand’s characteristics on its
2018.5.30 Manufactured sand (MS) is widely considered as an alternative of the river sand (RS) recently, and to clarify the influence significance and influence mechanism of
Charlar en LíneaParticle Characterization of Manufactured Sand and Its
2022.6.30 Shen et al. studied the particle shape and surface roughness of river sand and eight kinds of manufactured sand with DIP technology and found that manufactured
Charlar en LíneaResearch on the green preparation of manufactured sand by ...
1 天前 Research on the green preparation of manufactured sand by tuff produced in Gansu China and its influence on the properties of concrete 甘肃凝灰岩绿色配制人工砂及其对混
Charlar en LíneaInfluence of manufactured sand’s characteristics on its
2018.5.30 Manufactured sand (MS) is widely considered as an alternative of the river sand (RS) recently, and to clarify the influence significance and influence mechanism of
Charlar en Línea1,*, Chaoqun Dong 1, Chunhong Chen 1, Xinjie Wang 1
2021.11.22 Manufactured sand (MS) is a kind of fine aggregate with particle size less than 4.75 mm that is obtained by crushing and screening rocks. It is regarded as a
Charlar en LíneaParticle Characterization of Manufactured Sand and Its
2022.6.30 The particle shape parameters of five types of manufactured sand were obtained by using the aggregate image measurement system (AIMS) and digital image
Charlar en LíneaParticle Characterization of Manufactured Sand and Its
2022.6.30 Particle Characterization of Manufactured Sand and Its Influence on Concrete Properties. With the rapid development of infrastructure construction, it is an
Charlar en LíneaOptimization of mechanical properties and composition of M-sand
2022.9.12 The manufactured sand (M-sand) used instead of natural sand is cost effective. The PET particles are added to the cement for enhancing the strength
Charlar en LíneaMechanical properties of recycled sand ultra-high
2022.5.7 Ultra-high performance concrete (UHPC) has attracted attention due to its excellent mechanical properties. Traditional concrete preparation consumes a large amount of natural sand, resulting in the shortage of natural sand and raising price, which increases the preparation cost of UHPC and is not conducive to maintaining stable mechanical
Charlar en LíneaCrushed sand in concrete – Effect of particle shape in
2016.4.1 The phenomena above are mainly caused by the strong water absorption property of the powdery components in manufactured sand, which is detrimental to the flowability of advanced concretes.
Charlar en LíneaOptimization of mechanical properties and composition of M-sand
2022.9.12 The alternative should also be analyzed for better mechanical and physical properties. The novelty of the research work is the incorporation of PET particles along with manufactured sand for the preparation of concrete. The optimization for the optimal ratio of materials also adds to the novelty and the optimization using hybrid DNN-HHO modeling.
Charlar en LíneaChemically functionalized manufactured sand as the novel
2023.3.14 Preparation process of manufactured sand coated with polycarboxylate superplasticizer. a) FTIR spectra of AS, AS-KH570 and AS-PCE; (b) TGA curves of AS, AS-KH570 and AS-PCE.
Charlar en LíneaPreparation and Properties of Concrete Containing Iron
2013.11.1 Zhang et al. [13] investigated the properties of high-performance concrete prepared by a mix of iron tailings sand and manufactured sand. They found that the compressive strength of concrete ...
Charlar en Línea《混凝土与水泥制品》2020.第5期引用文本 - 知乎
2020.5.13 ZHOU X W,LIU J Z,LIU G Y,et al.Study of the Effect of Manufactured Sand Particle Shape on Mortar Rheological Property[J].China Concrete and Cement Products,2020(5):1-5. 章苏阳,蒋亚清,王玉,等.3D打印水泥基材料的建造性研究[J].混凝土与水泥制品,2020(5
Charlar en LíneaChemically functionalized manufactured sand as the
Manufactured sand whichwaspassedfrom the75 mmsieve and superplasticizer wereprovidedbyAnhuiTianqi TechnologyCo., Ltd. 2.2. Preparation process of AS-PCE Firstly, the hydroxylated manufactured sand (AS-OH) powders were prepared by dispersing manufactured sand in a “piranha” solution (a mixture of H 2SO 4 and H 2O 2 at a 3:1
Charlar en LíneaIncreasing sustainable aggregate usage in concrete by
2022.2.28 1. Introduction. The use of manufactured sands, a man-made fine aggregate product from crusher fines, as a partial replacement or 100% replacement of fine aggregate in a concrete mixture has become more common [16], [20], [21].Manufactured sands are essentially a waste product from producing coarse aggregate and so it is
Charlar en LíneaInfluence of manufactured sand characteristics on strength and abrasion ...
2011.10.1 Research on the green preparation of manufactured sand by tuff produced in Gansu China and its influence on the properties of concrete. 2023, Construction and Building Materials. Show abstract. Tuff in Gansu Province, China, is a parent rock with abundant reserves. Studying the characteristics of this parent rock and developing
Charlar en LíneaNear-Surface and Chloride Permeability of Concrete Using
2021.1.29 The durability properties like water absorption, sorptivity and chloride permeability results were checked for the different concrete mix proportions and compared with conventional concrete. ... it can be concluded that for replacement of 60% natural fine aggregate by manufactured sand (M-sand) and 20% cement by silica fume yields
Charlar en LíneaOptimization of mechanical properties and composition of M-sand
2022.9.12 This current research throws limelight over the optimization of manufactured sand and PET particle added concrete. The manufactured sand and PET particles are added in different proportions to find a viable alternative for natural sand in concrete composition. The alternative should also be analyzed for better mechanical and
Charlar en LíneaEffect of Hybrid Steel-Basalt Fiber on Behaviors of
2020.9.4 The mechanical properties and workability of manufactured sand reactive powder concrete (RPC) mixed with steel and basalt fibers were studied using the response surface method. The central composite
Charlar en LíneaMixing design and microstructure of ultra high strength
2017.7.15 Ultra high strength concretes prepared with sandstone manufactured sands can have higher strength than those made with river sands. The microstructure of manufactured sand ultra high strength concrete is very dense and the sizes of the hydration products e.g. ettringite, calcium hydroxide and monosulfate Calcium sulfoaluminate
Charlar en LíneaA study on the printability of manufactured sand concrete
The basic properties of sand used are shown in Table 2. Manufactured sand primarily consists of SiO 2 and CaCO 3, while the chemical composition of its stone powder is depicted in Fig. 2b. The manufactured sand contains more particles smaller than 0.3 mm and fewer particles ranging from 0.3 to 0.6 mm.
Charlar en LíneaStudy on Mix Proportion Optimization of Manufactured Sand
2019.6.6 This study investigated four factors (water/binder ratio, silica fume, fly ash, and sand/binder ratio) using the orthogonal experimental design method to prepare the mix proportions of a manufactured sand reactive powder concrete (RPC) matrix to determine the optimal matrix mix proportions. On this basis, we assessed the compressive and splitting
Charlar en LíneaMixing design and microstructure of ultra high strength
2017.7.15 Preparation of ultra high strength concrete with manufactured sand is an effective approach to reduce the natural resource depletion and environmental impact of cement concrete industry. ... (P.O 52.5) produced in Huaxin Cement Company was used in this investigation. Its properties and chemical compositions are shown in Table 1, Table 2 ...
Charlar en LíneaAlternative fine aggregates in production of sustainable
2020.9.20 These alternative fine aggregate (AFA)/manufactured sand (MS) are generally produced from natural sources or any other sources like old concrete, rocks, industrial wastes after processing using thermal, mechanical and chemical separation, washing, crushing and scrubbing (Dash et al., 2016).
Charlar en LíneaStudy on mechanical properties and microstructure of manufactured sand ...
2023.3.15 The materials used in the test include 52.5 grade cement, silica fume with SiO 2 content of 94.5 %, primary fly ash, S95 grade mineral powder, manufactured sand and polycarboxylic acid high performance water reducing agent with a water reduction rate of 28.5 %. The Gradation curve of MS is shown in Fig. 1.The mix proportion of MSRPC is
Charlar en Línea