use of li ne and gypsum in cement in Oman

Oman becomes world's largest gypsum exporter

"That leaves Oman as the single most important source of high grade natural gypsum for cement and gypsum board manufacturers across Asia and South/East Africa," he observed. Underscoring the surging demand for Omani gypsum, Salalah Port handled a record 1.6 million tonnes of the mineral during the first two months of this year.

Huaxin Cement to acquire Oman Cement

Oman: China-based Huaxin Cement has concluded a share purchase agreement with Omani sovereign wealth fund Oman Investment Authority (OIA) for the acquisition of a 60% stake in Oman Cement. ASDQ Financial News has reported the value of the deal as US$193m. OIA director general of private ownership Ibrahim bin Said al …

Oman Cement to start joint-venture with Raysut Cement

Oman: Oman Cement has registered a new joint-venture company with Raysut Cement to operate in the Duqm Special Economic Zone Authority. The new Company is named Al Wusta Cement Company and it will set up a new cement plant following a feasibility report.

Scarcity of Domestic Gypsum Supply

The Indian cement manufacturers are likely to face serious challenges regarding gypsum availability and cost in the near future. Ramachandran, Chief Executive Officer, Zawawi Minerals LLC, Sultanate of Oman, discusses how identifying and ensuring a consistent supply of gypsum will become an on-going challenge. The Indian cement …

What is the purpose of adding gypsum in cement?

Gypsum is a mineral and is hydrated calcium sulfate in chemical form. Gypsum plays a very important role in controlling the rate of hardening of the cement. During the cement manufacturing process, upon the cooling of clinker, a small amount of gypsum is introduced during the final grinding process. Gypsum is added to control the...

About Oman Cement Company – Oman Cement Company

Since 1983, Oman Cement Company has symbolized Oman's drive for self-reliance in core industries. We have given new strength to the construction industry, consolidated the …

Oman Plaster

Oman Plaster (OP) is unique by offering its customers superior products and services. Our goal is to achieve highest customer satisfaction through the quality, reliability and …

Oman retains crown as world's biggest gypsum exporter …

Exports of Omani gypsum – a key raw material for the cement and gypsum board manufacturing industries – amounted to 8.74 million tons in 2021. The principal market was India, lifting around 3.10 million MT from the Sultanate of Oman, followed by Bangladesh (1.40 million MT), Vietnam (1.34 million MT), Japan (0.70 million …

Oman Industrial Gypsum Company LLC | Products

Oman Gypsum quarry is located 19 km South of Thumrait city, Salalah. Thumrait is the nearest city. Quarry is located 4 Km (well graded road) away from the Muscat- Salalah dual carriage main highway. Nearest sea port for shipment is Salalah Port. This is well connected with high quality road network of Oman. Salalah Port is located 82.0 Km from …

Future Asian gypsum demand and supply trends: Oman

Indian cement and gypsum wallboard industries will require more than 280Mt of gypsum in the 15 year period to 2030 due to the country's limited domestic supplies. This has been calculated using year-on-year growth rate of 8%. ... Oman's gypsum export volumes through Port of Salalah have already grown at a phenomenal …

Oman Cement Co. : Professional Cement …

Gypsum, which is used for retarding the setting of the company's cement, is obtained from mines at Ghaba in Wilayat Adam. Oman Cement's three kilns and four cement grinding mills allows the …

OCC reveals plans for new $300mn production line as part of …

Salem bin Abdullah al Hajri, the CEO of OCC, was quoted as saying that the new line will help Oman achieve cement self-sufficiency by 2024. It will also enhance …

Product Information – Oman Cement Company

Lime stone deposits, additives, quartzophylites and ferrogenous quartzophylites are located adjacent to the plant site. Gypsum, which is used for retarding the setting of cement is …

Oman Cement

Gypsum in Oman

The fastest growing export markets for Gypsum of Oman between 2021 and 2022 were India ($25.7M), Nepal ($2.29M), and Indonesia ($1.5M). Imports In 2022, Oman imported $559k in Gypsum, becoming the 130th largest importer of Gypsum in the world. At the same year, Gypsum was the 854th most imported product in Oman.

Omani gypsum exports rise in 2022

The figure corresponds to year-on-year growth of 13% from 8.74Mt in 2021. The Oman Daily Observer newspaper has reported that India received 4.84Mt (49%) of Omani gypsum exports during the year. This accounts for 87% of the South Asian nation's total gypsum imports, of 5.54Mt, in 2022.

Update on Oman, September 2021

Update on Oman, September 2021. Raysut Cement Company (RCC) announced this week that it is preparing to commission its Duqm grinding plant in late …

OCC floats tender for construction of its fourth cement

Muscat: Oman Cement Company (OCC) floated a tender for the construction of its fourth cement production line in the Sultanate of Oman and to upgrade its third line. The fourth line will have a capacity of 10,000 tonnes per day of clinker, whereas the daily capacity of the third line will be upgraded from 4,000 to 5,000 tonnes per day.

(PDF) Effect of Using Sugar and Gypsum as a Retarder on Concrete …

OPC paste with a water cement ratio 0.4 to 0.5 was prepared by mixing 500 grams of ordinary Portland cement, a fixed amount of sugar of 0.02% by weight of cement with a combination of different ...

Role of Gypsum in Cement and its Effects

The primary function of gypsum in cement lies in slowing down the hydration process. Cement, upon contact with water, swiftly reacts with C3A, leading to rapid hardening. This quick pace hinders the essential stages of mixing, transporting, and placing. Gypsum's intervention alters this process by instigating a reaction with C3A, resulting in ...

Binders part 2: gypsum and lime – The …

Chemically gypsum is hydrous calcium sulphate (CaSO 4 ·2H 2 O), but when cooked at temperatures you would use to cook a casserole, three-quarters of the chemically bound water is driven off, …

Oman Industrial Gypsum Company LLC | About Us

Oman Gypsum quarry is located 19 km South of Thumrait city, Salalah. Thumrait is the nearest city. Quarry is located 4 Km (well graded road) away from the Muscat- Salalah dual carriage main highway. Nearest sea port for shipment is Salalah Port. This is well connected with high quality road network of Oman. Salalah Port is located 82.0 Km from …

Use of recycled gypsum in the cement-based …

Use of recycled gypsum in the cement-based stabilization of very soft clays and its micro-mechanism ... including fi ne-grained clay and silt particles, coarse ... (Li and Zhang, 2009; Hattab et ...

Oman Cement

The gypsum that we use is natural gypsum from Oman. It comes from a site that is owned by OCC. Material is extracted by a third party and is trucked to the plant. GC: What about the raw mills and kilns? HSAH: The limestone and additives are taken from their respective mix beds and are dosed into one of our five raw mills, all of which are …

USG HYDRO-STONE GYPSUM CEMENT

Weigh both the USG Hydro-Stone Gypsum Cement and the water prior to use for each mix. The water-to-USG Hydro-Stone Gypsum Cement ratio is critical because it governs the strength and the density of the final cast. Sift or strew USG Hydro-Stone Gypsum Cement into the water slowly and evenly. Do not drop

Gypsum Concrete in Mass Timber Construction

Poured gypsum concrete is a trusted solution that supports the sustainable goals of using mass timber by further reducing embodied carbon in construction. This topping layer alternative for mass timber construction can be leveraged with as little as a 1-inch pour, delivering the same sound and fire performance as poured lightweight concrete ...

Partial Cement Replacement in Concrete with Gypsum …

2.1 Test Matrix. Five total mix designs are considered for this study including one control batch, two batches that involve fine gypsum as a partial replacement for cement in different amounts (20% and 10%), and two batches that involve the whole gypsum as partial replacements for 10% and 20% of cement in the concrete.

Partial Cement Replacement in Concrete with Gypsum …

2.1 Test Matrix. Five total mix designs are considered for this study including one control batch, two batches that involve fine gypsum as a partial replacement for cement in different amounts (20 and 10%), and two batches that involve the whole gypsum as partial replacements for 10 and 20% of cement in the concrete.

Oman Cement Company raises sales and profit in 2023

Oman: Oman Cement Company recorded sales of US$189m in 2023, up by 4% year-on-year from US$181m in 2022, Reuters has reported. The company's net profit also grew during the year, by 16% to US$15.1m from US$13m.

Physicomechanical Properties of Gypsum with …

Gypsum, from either nature or industrial by-products, can be a lower-cost and cleaner alternative binder to Portland cement used in construction projects, such as affordable housing in developing …