Dolomite Powder Cement

Dolomite is a novel auxiliary cementitious material that has been successfully applied in cement-based materials (Zhang et al., 2021a), which is consisted of calcium carbonate and magnesium carbonate.Partial replacement of cement with DLM is beneficial to energy conservation and environmental protection (Guo et al., 2020, 2021; Cohen et al., 2019).

Magnesium oxychloride cement (MOC) concrete (MOCFC) is an air-hardening cementing material formed by mixing magnesium chloride solution (MgCl2) and light-burned magnesia (i.e., active MgO). In application, adding caustic dolomite powder into light-burned magnesite powder can reduce the MOCFC production cost. The brine content of MOC …

Therefore, from the above literature review and Fig. 5 and 6, it can be deduced that the addition of dolomite as fractional cement substitution led to increases in the compressive strength of concrete mainly because of the dolomite powder coarser particles as compared to ultrafine cement particles, produce more crystallization grains and denser ...

Dolomite rock powder (the waste stone residue in the production of machine-made sand and stone processing) and iron tailings powder formed by mineral processing industry are solid wastes, which occupy land resources, pollute the environment and release toxic substances without reasonable processing. The dolomite rock powder and iron tailings powder composing …

Cement Industry. Since dolomite is rich in properties like high-density ratio and high surface hardness. It is also used as a filler as it is a hard and strong chemical. ... Dolomite powder from Aravali Onyx has a wide variety …

Qualified dolomite powder, such as 250 mesh, can produce glass, ceramics, magnesium fertilizer, etc. 600 mesh can produce toothpaste and soap. ... The magnesium-containing dolomite cement has the advantages of fast setting and hardening, good compression resistance, good elasticity, and strong wear resistance. It is used in floor tiles, fast ...

Studies show that dolomite has been successfully utilized in various civil engineering applications. In combination with dolomite powder (3:1), fly ash has been successfully used in self-compacting concrete [6].A reduction in slump value was observed when dolomite powder was used as filler material in self-compacting concrete [7].Dolomite stone can be used …

When used as a partial replacement of cement in concrete, dolomite powder reacts with the hydration products of cement to form calcium magnesium carbonate hydrates, which …

The Blaine specific surface area of dolomite is 437 m 2 kg −1, which is finer than PC, and the CaMg(CO 3) 2 content of dolomite powder is about 95.5%, determined by thermogravimetric analysis.. 2.2 Method. PDC binders were made with cement contents of 0, 10, 20, 30% dolomite by weight. Two series of mortars, 25 × 25 × 280 mm in size, and with a …

The effects of dolomite powder on the freeze–thaw resistance of C30 and C45 concrete were investigated in this manuscript. Scanning electron microscopy (SEM), the electric flux method, and a freeze–thaw cycle testing machine were used to determine the morphology, chloride penetration resistance, mass loss rate, and relative dynamic elastic modulus (Er) of …

Self-compacting concrete (SCC), known for its excellent fluidity and self-compacting ability, is widely used in civil engineering. To enhance the comprehensive performance of SCC, dolomite powder (DP) is integrated as a substitute for cement. This study aims to analyze the impact of DP on the yield stress relationship between self-compacting …

Zajac et al. (2014) found that dolomite powder of cement paste at a curing temperature of 60 °C was partially dissolved after 180 d; correspondingly, the inner calcium silicate hydrate (C-S-H) had a denser microstructure. At a curing temperature of 20 °C, the dolomite powder in cement paste was rarely involved in hydration reaction after 180 ...

This study aims at exploring the benefits of using dolomite powder (DP) to improve the engineering performance of low-cement self-compacting concrete (SCC) with cementitious materials comprised of ...

A bibliographic analysis is done using VOSviewer providing relationships between the keywords and countries doing research on dolomite powder. Concrete incorporating dolomite exhibits enhanced mechanical properties, boasting a 5–10% increase in compressive strength, 6–12% higher tensile strength, and a 5–10% boost in flexural strength at ...

The present study focuses on utilizing stockpiled dolomite quarry waste for sustainable and cleaner production of concrete. Natural river sand is substituted with dolomite quarry waste at 0, 10, 20, 30, 40, 50, 60, 70, 80, 90, and in concrete mixes. The test findings revealed the concrete mix made with 10% dolomite quarry waste displayed …

The target mean of M30 grade concrete is 31.6 N/mm2. The optimal replacement percentage of cement with dolomite powder 10% is 23.23 N/mm2 and when the compressive strength for 21 days is 32.85 N/mm2, 37.685 N/mm2 for 28 days. The optimal replacement percentage of cement with dolomite powder when the Split tensile

This work systematically investigated the effect of various replacement levels of dolomite powder (10, 20 and 30 wt%) on the compressive strength, hydration products and …

Objective of study to analyzing physical property of fresh concrete that is workability & compressive strength, flexural strength of hard concrete in M25 by adding dolomite as partial replacement ...

Muthukumaran, V. Rajagopalan, "Experimental Study on Partial Replacement Of Sand With M-Sand And Cement With Dolomite Powder In Cement Concrete". Scopus vol-8, 1-7 (2017).

The addition of dolomite fine powder in concrete increases the nucleation points of crystallization, resulting in rapid strength gain [56]. The acid attack (sulfate) resistance of dolomite cement ...

properties of dolomite powder on calcium sulfoaluminate (CSA) cements. They found that the hydration of CSA cement was accelerated, and the strength loss of the CSA mortar was alleviated with the addition of dolomite powder [20]. Nguyen investigated the effect of dolomite powder as part of fine particles on the engineering properties of slag—

Cement, fly ash, dolomite powder, fine aggregate, coarse aggregate, super plasticizer and water are used to prepare SCC. The cement used is, of choice for general concreting purposes, Ordinary Portland Cement (OPC 53 grade) that conforms to IS: 12269 standards. The Specific gravity of cement is 3.15 and fineness of cement is 4.48% which is less ...

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 an …

It seems that dolomite powder in PDC react primarily with aluminate from Portland cement to form carboaluminates and hydrotalcite, rather than brucite and calcite.

The dolomite powder is the squashed mineral from dolomite. The substitution paces of bond by dolomite powder are 5%, 10% and 15% by the greatness of M20 grade concrete. The dolomite …

As we can see, partial cement replacement with dolomite limestone powder results in compression strength increasing. Strength of samples containing 25% of dolomite limestone …

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 …

on the utilization of dolomite powder in cement based materials is scarce. It has been known that dolomite powder has similar property to limestone powder in cement based materials, which is characterized by low activity and potential occurrence of TSA. But the effect mechanism of dolomite powder on cement is not completely uncovered.

Dolomite powder obtained by powderising the sedimentary rock forming mineral dolostone can be used as a replacement material for cement in concrete 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

The effects of dolomite powder on the freeze–thaw resistance of C30 and C45 concrete were investigated in this manuscript. Scanning electron microscopy (SEM), the electric flux method, and a freeze–thaw cycle testing machine were used to determine the morphology, chloride penetration resistance, mass loss rate, and relative dynamic elastic modulus (E r) of …