Temat: GGBS - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: The Properties of Ground Granulated Blast Furnace Slag Lightweight Aggregate (GLA) at Various Molar Ratio and Its Application in Concrete
Autorzy:: Razak, Rafiza Abd
Hassan, Mohd Akhmal
Abdullah, Mohd Mustafa Al Bakri
Yahya, Zarina
Ariffin, Mohd Azreen Mohd
Mansor, Ahmad Faizal B.
Hao, Dickson Ling Chuan
Tematy:: cold bonding
ground granulated blast furnace slag
GGBS
artificial lightweight aggregate
lightweight concrete; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czasopisma i Monografie PAN
Powiązania:: https://bibliotekanauki.pl/articles/59110634.pdf Link otwiera się w nowym oknie
Opis:: The effects of supplementary cementitious materials (SCM) on the characteristics and internal structure of synthetic aggregate made from ground granulated blast furnace slag are investigated in this study (GGBS). Due to its high pozzolanic activity, GGBS was shown to be superior to other SCM materials, enhancing both the strength and durability of synthetic aggregate. Because sintering uses a lot of energy and generates a lot of pollutants, using a cold-bonded approach to make low density lightweight aggregates is particularly significant from an economic and environmental standpoint. Thus, the utilisation of ground granulated blast furnace slag (GGBS) as a substitute material in the production of green artificial lightweight aggregate (GLA) using the cold bonding method was discussed in this work. Admixtures of ADVA Cast 203 and Hydrogen Peroxide were utilised to improve the quality of GLA at various molar ratios. The freshly extracted GLA was then evaluated for specific gravity, water absorption, aggregate impact, and aggregate crushing in order to determine the optimal proportion blend. As a result, the overall findings offer great application potential in the development of concrete (GCLA). It has been determined that aggregates with a toughness of 14.6% and a hardness of 15.9% are robust. The compressive strength test found that the GCLA has a high strength lightweight concrete of 37.19 MPa and a density of 1845.74 kg/m3. The porous features developed inside the internal structure of GLA have led to GCLA’s less weight compared to conventional concrete.
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Current trends in development of lime based composites
Autorzy:: Olaniyan, S. A.
Klemm, A. J.
Tematy:: lime mortar
GGBS
ground granulated blast slag
carbonation
performance indicators
zaprawa wapienna
granulowany mielony żużel wielkopiecowy
karbonatyzacja
wskaźniki efektywności; Pokaż więcej
Wydawca:: Instytut Fizyki Budowli Katarzyna i Piotr Klemm
Powiązania:: https://bibliotekanauki.pl/articles/362354.pdf Link otwiera się w nowym oknie
Opis:: Prior to the beginning of this century, lime dominance as a building material particularly, lime mortar was incontrovertible. Reminiscence of this is reflected in many buildings of historic references which stand till date as their durability features are predominantly attributed to lime’s inherent properties of flexibility, plasticity and breathability, among others. However, lime’s characteristic long ‘setting and hardening’ periods, low mechanical strength and poor internal cohesion coupled with subsequent discovery of Portland cement put its use into decline. In this paper, new approaches involving lime based composites aimed at maximising lime’s sterling features while improving its identified shortcomings are highlighted. The focus is particularly on lime based mortars blended with cement and ‘Ground Granulated Blast Furnace Slag’ (slag) in varying compositions individually, for improved performances. As this effort attempts to evolve lime revival for new constructions, it will also serve as a befitting response to the phenomena climate change with a view to minimising construction impacts on the environment.
Dostawca treści:: Biblioteka Nauki

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