Physical-radiation shielding properties of concrete contains colemanite and ulexite

Abstract

Radiation is an important phenomenon as it is used in a variety of different fields. However, its possible hazardous effect should be taken into account and it should be shielded. As the concrete is a widely used construction material, the mechanical and radiation shielding properties of concretes containing boron-bearing aggregate additives have been studied. The results show that the addition of colemanite or ulexite into concrete has significant effects on density, workability, compressive and flexural strength, elastic modulus and radiation shielding. The results also show that concrete containing colemanite or ulexite is no more effective in the attenuation of gamma rays than ordinary concrete.

Industrial Symbiosis: CO2 Utilization by Producing Disodium Octaborate Tetrahydrate and Baking Soda from Borax

“…The same is valid for the avoidance of the consumption of BA and, as explained above, associated climate change impact (CO 2 equivalent). Additionally, sodium bicarbonate (NaHCO 3 ) with about 95% purity (baking soda) or its calcined form, sodium carbonate (Na 2 CO 3 ), soda ash, with their wide scale uses − can fetch around 378 and 393–543 $/ton in the market, respectively. With the EU carbon (CO 2 ) price in August 2022 hitting an all-time high of 99.14 € per ton, the proposed CO 2 utilization process will also provide additional income through the CO 2 emission allowance scheme. , …”

Mechanical and Physical Performance of Portland Cement Composites with Partial Replacements of Metakaolin and Ulexite

“…Although there are few studies on ulexite in building materials and the construction sector, some studies show that ulexite might be used in cement [23,24]. In this study, the mechanical properties of Portland cement with metakaolin and ulexite replacement have been investigated.…”

Metakaolin ve Kolemanit Atığı İçeren Harç Karışımlarının Yüksek Sıcaklık Etkisi Altındaki Performansının İncelenmesi

“…Sonuç olarak, kolemanit, barit ve diğer tarımsal atıkların beton üretiminde kullanılabileceği ifade edilmiştir. Uçar ve arkadaşları (2021) [12] kolemanit ve üleksitin betonda kullanımının dayanım ve radyasyon engelleme performansı bakımından avantaj sağladığını tespit etmişlerdir. Kula ve arkadaşları (2001), (2002) [13], [14] tarafından yapılan çalışmalarda, kolemanit ve tinkal atıkları ile uçucu kül ve dip külü kullanımının betonun dayanım ve priz süresine etkileri belirlenmiş olup kolemanit atığının çimentolu sistemlerde kullanılabileceği bildirilmiştir.…”