Dobiszewska et al. [24] used basalt powder as a cement substitute up to 20% in mortars. It has been reported that using basalt powder reduces the heat of hydration, slows the rate of hydration, and reduces compressive strength. ... Pumice, barite, and basalt were used at 7.5% and 15% by weight instead of cement. The mix design is …
اقرأ أكثرBasalt fibers are widely used in the modification of concrete materials due to its excellent mechanical properties and corrosion resistance. In this study, the basalt fibers were used to modify reactive powder concrete (RPC). The effect of four mix proportion parameters on the working and mechanical properties of basalt fiber reactive powder …
اقرأ أكثرA study conducted by Dobiszewska & Barnes [32] examined the potential utilization of waste basalt powder in concrete production through various replacement proportions (10%, 20%, and 30%). The ...
اقرأ أكثرMoreover, the total heat release of the unit mass cement of UHPC paste with basalt powder at 120h decreased by 12%–21% compared to pastes without basalt powder. Furthermore, the finer the basalt powder is, the more total autogenous shrinkage and total heat release of unit mass cement of UHPC pastes are.
اقرأ أكثرA new type of cement-soil mixing pile reinforced by basalt fibre is proposed for increasing the bearing capacity of cement-soil mixing piles. This work primarily consists of three parts.
اقرأ أكثرBasalt is described as igneous rock that can be used as an SCM with low pozzolanic activity, as a replacement for the cement powder or as an additive to the cement paste in new cement formulations ...
اقرأ أكثرA comparison was made between the performance of a reference concrete without basalt powder and concretes containing different amounts of waste basalt powder. Five concrete mixtures were prepared, i.e. reference concrete without basalt powder and those replacing (by mass) 5%, 10%, 20% and 30% of fine aggregate (sand) with basalt …
اقرأ أكثرThe introduction of up to 10 kg/m 3 of basalt fibers to RPC mix was proved to be possible, while keeping the same w/c ratio equal to 0.24, with a slight loss of …
اقرأ أكثرThe results showed that the gradual incorporation of basalt powder waste as admixture up to 20%, accelerated the setting time more than 13 times, but decreased the …
اقرأ أكثرA new type of cement-soil mixing pile reinforced by basalt fibre is proposed for increasing the bearing capacity of cement-soil mixing piles. This work primarily consists of three parts. First, the process of construction technology is proposed, which could allow uniform mixing of the basalt fibre in cement-soil. Second, the optimal proportions of the …
اقرأ أكثرInvestigating the Influence of Waste Basalt Powder on Selected Properties of Cement Paste and Mortar. Magdalena Dobiszewska, A. Beycioğlu. Published 1 October …
اقرأ أكثرAccording to the microstructural analyses, the presence of basalt powder in concrete mixes is beneficial for cement hydration products, and basalt powder …
اقرأ أكثرIn this study, the raw materials included cement, fly ash, water reducing agent, sand, steel fiber, and basalt fiber. The P•II 52.5R Portland cement with a specific surface area of 365.3 m 2 /kg was produced by Conch Co. Ltd., Anhui, China. The Class-F fly ash with a low calcium content was produced in Jiaxing, Zhejiang, China.
اقرأ أكثرThe effect of the basalt fibers on the compressive strength was smaller than that of the re-dispersible latex powder-basalt fiber. With an increase in the amount of re-dispersed latex powder, the compressive strength of the re-dispersed latex powder-basalt fiber-modified ed concrete initially increased and then decreased.
اقرأ أكثرThe composition of the concrete mix was optimized to obtain the highest packing density of particles in the composite, based on the optimum particle size distribution curve acc. to Funk. ... Stefania, Aneta Matuszek-Chmurowska, Eva Vejmelková, and Robert Černý. 2020. "Reactive Powder Concrete Containing Basalt Fibers: Strength, Abrasion …
اقرأ أكثرFor the preparation of the paste containing basalt, 0.25 ml water per gram of milled basalt fibers and 0.25 ml water per gram of cement were used. A total of 50.75 ml distilled water, 15 g basalt powder and 200 g Portland cement were mixed by hand for 2 min until a completely homogeneous mixture was formed.
اقرأ أكثرThe optimal mixing ratio of basalt stone powder supplementary cementitious material is stone powder (10.8 %), fly ash (5 %) and slag (22.69 %). Under this mix ratio, the properties of basalt powder-assisted cementitious materials have been improved and close to the reference group. ... Therefore, when basalt powder replaces cement alone, …
اقرأ أكثر2. Materials and Methods. To prepare the Reactive Powder Concrete (RPC), the following ingredients were used: Portland cement CEM I 52,5 R (Cement Plant, Rejowiec, Poland) with specific surface area 410 m 2 /kg, silica fumes, quartz powder 0/0.2 mm, quartz sand 0/0.4 mm and basalt fibers 12 mm long and diameter 18 µm. Polycarboxylate …
اقرأ أكثرThe rheological properties of cement mortars and concrete mixtures are positively influenced by the addition of marble dust [10] and limestone powder [11]. Compressive strength of cement mortars and conctrete increases with the addition of granite powder [12] and basalt powder [[13], [14], [15]]. The dispersion component fills …
اقرأ أكثرConcrete is the most widely used man-made construction material in civil engineering applications. The consumption of cement and thus concrete, increases day by day along with the growth of urbanization and industrialization and due to new developments in construction technologies, population growing, increasing of living standard. Concrete …
اقرأ أكثرIn the event of promoting the sustainability of concrete, the use of wood black charcoal powder as a concrete additive was implemented. This type of additive is an organic type that the production did not need the use of chemicals. ... Incorporation of macro basalt fiber in the concrete mix (B3) gave the lowest density of 1931 kg/m 3 while B2 ...
اقرأ أكثرThe effects of glass powder addition on the properties of M40 mortar concrete mix at 28 days three concrete mix with dosages of 20% of the weight concrete mix are briefly discussed in this paper ...
اقرأ أكثرThe advent of reactive powder concrete (RPC) has brought about the era of ultra-high performance concrete (UHPC), and the incorporation of fiber has brought about more possibilities for its application. Basalt fiber reinforced reactive powder concrete (BFRPC), as the product of the combination of RPC and fiber, has become a new …
اقرأ أكثرThe present study shows the results oftheresearch concerning the modification of cement paste and mortar with basalt powder. Themodification consists in adding the powder waste as a partial ...
اقرأ أكثرThe addition of basalt powder into cement pastes does not increase the water demand to obtain a normal consistency [27], [28], [29]; if about 8 % of basalt …
اقرأ أكثرRequest PDF | Geopolymer concrete with high strength, workability and setting time using recycled steel wires and basalt powder | Geopolymer concrete production is interesting as it is an ...
اقرأ أكثرIn GPCs made with only marble and basalt powder, basalt powder has a 26% superiority. In addition, there are changes in the ductility and energy absorption …
اقرأ أكثرThe cement mortar was modified by basalt powder in amount 10, 20 and 30% by weight of cement (replacement of cement). The consistence of fresh mortars should have the quality of self-compacting ...
اقرأ أكثرThe mix compositions of the 4 groups of concrete were the same. The dosages of water and OPC were 172 and 350 kg/m 3, respectively, ... Effect of basalt powder on the properties of cement mortars and roller compacted concrete. Nat. Science J. Xiangtan Univ., 39 (1) (2017), pp. 34-39.
اقرأ أكثرDobiszewska et al. reported that mixing basalt powder into concrete can improve flexural and compressive strength. P.P. Li et al. found that coarse basalt aggregates slightly reduce the mechanical properties of UHPC. Ponzi used basalt powder (BP) to Carbon Capture and Storage (CCS) wells, proving that low ...
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