The results indicate that replacement of cement with dolomite powder increases the compressive, split tensile and flexural strengths of concrete. Keywords: dolomite …
It is found that the concrete made of low cost material dolomite powder and waste material quarry dust increases the compressive strength, split tensile strength and flexural strength of concrete ...
Since the cost of cement increases and the pollution to environment due to greenhouse effect are becoming more serious year by year, thus, dolomite fines subjected to replace the cement in ...
Dolomite powder (DLM) has been proved in providing promising improvement effects on cement-based materials as an auxiliary cementitious material. …
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Dolomite is an anhydrous rock that resists weathering well and has a variety of compositions depending on where it is found. Dolomite being extracted from the mining while dolomite powder (DP) emerges as industrial waste primarily from the pulverization and processing of dolomite rock during extraction and production …
The addition of dolomite powder to concrete can improve its mechanical properties such as compressive and flexural strength, as well as its durability and resistance to …
In this research, the setting time, compressive strength, cement mortar fluidity, X-ray diffraction, scanning electron microscopy and hydration-heat release rate were adopted to assess the effect of Portland cement on magnesium oxysulfate (MOS) cement prepared by light-burned dolomite ores. The experimental results showed that adding …
Semantic Scholar extracted view of "The Effect of Dolomite Additive on Cement Hydration" by Miłosz Szybilski et al. ... This study aimed to understand the synergistic effect of dolomite powder (DM) and metakaolin (MK) on the ... The results of experimental studies to determine the possibility of organizing the carbonate hardening of the ...
While previous research has explored the use of raw and thermally activated dolomite powder in cementitious materials, there is a lack of comprehensive research on the alterations in physiochemical properties of dolomite powder with different activity levels and their impact on mortar properties (Yılmaz and Olgun, 2008; Zhang et al., 2014 ...
Durability test is done by hydrochloric acid (HCl) and sulphuric acid (H2SO4) on dolomite powder, promising results were obtained in the sorptivity test which shows the dense nature of concrete by ...
Chen et al. [8] studied the replacement of a certain amount of cement with dolomite powder, and the results showed that the addition of dolomite powder could improve the mechanical properties and ...
Added as 5 % by mass of mixed binder they play a role of active cement replacement and this refers both to the fine, coarse limestone and dolomite powder. Obviously, the effect of the finest limestone powder is more clearly pronounced, in the form of separate, third peak attributed to the calcium aluminate intensive hydration (possible ...
A Review Paper on Experimental Study of Effect on Concrete Properties with Partial Replacement of Cement with Dolomite Powder July 2019 DOI: 10.22214/ijraset.2019.7156
Calcined dolomite (CD) consists mainly of reactive CaO and MgO, which are the potential alkaline earth activators in the AAC pastes [37], [38], [39]. In the present study, a one-part Na 2 CO 3-activated slag dry mixture was prepared by mixing blast furnace slag with sodium carbonate powder and CD. The dry mixture only needed the …
In addition, the chemical compositions of dolomite powder and cement are also provided, which are shown in Table 3.The specific surface area of the dolomite powder is 439 m 2 /kg. Fig. 1 shows the morphological characteristics of DLM, it can be seen that the DLM is composed of most spherical particles and a small part of flake …
powder in PDC and dolomite-bearing aggregate in concrete. Dolomite mineral, either in powder or in coarse aggregate form, is unstable in high alkaline media and can be involved in the reaction with concrete pore solution. Recent studies [3, 7, 21] report that in PDC with dolomite powder, typical dedolomitization does not take place or is ...
Effect of dolomite powder on the hydration and properties of calcium sulfoaluminate cements with different gypsum contents. Construction and ... [35] H.A. Nguyen, T.P. Chang, J.Y. Shih, D.H. Suryadi. Enhancement of low-cement self-compacting concrete with dolomite powder. Construction and Building Materials (2018), …
This paper deals the fresh and hardening property of concrete made with m-sand as sand and dolomite powder as cement replacement in different percentage of amounts and also the experimental studies on physical and micro structural properties of manufactured sand are presented in this paper. ... 2395-0056 Volume: 07 Issue: 12 | Dec 2020 p-ISSN ...
or component of cement because some forms of dolomite aggregates might cause concrete damage due to the dedolomitization. However, it has already been reported that the addition of dolomite in powder form to cement performs a comparable compressive strength to Portland-limestone cement [1,2]. Moreover, similar to limestone, dolomite …
dolomite is considered to interact with the cement aluminates to form hydrotalcite, which leads to a decrease in the porosity and an increase in the compressive strength [3,4].
The present Investigation is aimed at utilizing low cost material Dolomite powder and waste material Quarry dust as partial replacement of cement and sand in concrete.
Overall, the use of dolomite powder in concrete can produce a stronger, more durable, and more sustainable concrete mix. 6. Effects of Dolomite Powder on Mechanical Properties and Microstructural Characterization of Concrete Several studies have investigated the effects of dolomite powder on the mechanical properties and …
up to certain percentage. Dolomite powder has some similar characteristics of cement. Using dolomite powder in concrete can reduce the cost of concrete and may increase the strength to some extent. This paper examines the possibility of using dolomite powder as a partial replacement material to cement. The replacement percentages tried were …
Dolomite powder (DLM) has been proved in providing promising improvement effects on cement-based materials as an auxiliary cementitious material. Therefore, DLM was introduced into CAEC in this work for the purposes of improving the …
Adding different types and amounts of water reducing agent to Dolomite-based magnesium sulfate cement (DBMSC), and analysing the effect of water reducing agent on DBMSC by studying its setting ...
Effect of dolomite limestone fine powder specific surface on cement concrete compression strength at 7 days age When limestone content is optimal (25 % of binder weight), strength gain is higher ...
Cement-slag-limestone (CSL) powder concrete is a new type of ternary concrete. Thus far, CSL powder application in ultra-high performance concrete (UHPC) remains relatively limited.
Therefore, it is necessary to expand the types of supplementary cementitious materials (SCM) available for 3D concrete and to compare the effects of different SCMs on the same type of concrete. The aim of this study is to gain a better insight into the effects of recycled powder (RP) and dolomite powder (DP) on 3D …
As a result, the compressive strength of cement mortar incorporating dolomite powder increased significantly (up to 31.5%). At later stage of cement hydration (90 days), the reaction between dolomite powder and portlandite from the hydrated cement formed a small amount of magnesium hydroxide which led to the refinement of …
A Review Paper on Experimental Study of Effect on Concrete Properties with Partial Replacement of Cement with Dolomite Powder Prof. Vijay Kumar. 2P. ... and hardening property of concretes mad e ...
Cement asphalt emulsion composites (CAEC) are gradually being valued by pavement researchers because of its environment-friendly properties. However, there are still great difficulties in producing high-performance CAEC at present. Dolomite powder (DLM) has been proved in providing promising improvement effects on cement-based materials as …
The pilot production of alite (C3S) modified CSA (AMCSA) clinker was carried out by liquid phase manipulation and barium ion doping technology and the results show that the stable coexistence of ye'elimite and C3S in the same clinker system is realized.