Engineering performance of high-content MgO-Alkali-activated slag mortar incorporating fine recycled concrete aggregate and fly ash

Vo, Duy‐Hai; Hwang, Chao‐Lung; Thi, Khanh-Dung Tran; Liao, Min‐Chih; Yehualaw, Mitiku Damtie

doi:10.1007/s10163-020-01171-7

Cited by 15 publications

(1 citation statement)

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“…Cement production is viewed as a procedure that uses a lot of energy and pollutes the environment [1]. According to recent estimates, concrete production contributes only 7% of all CO2 emissions caused by humans [2]. Therefore, using by-products to partially or completely replace OPC in concrete or to create an eco-friendly binder represents a novel strategy that may help minimize the use of cement, lowering the energy costs and CO2 emissions linked to concrete production/mortar.…”

Section: Introductionmentioning

confidence: 99%

Strength development and microstructure evaluation of cement mortar incorporating various waste red brick powder

Ngo,

Vo,

Phan

et al. 2023

IOP Conf. Ser.: Mater. Sci. Eng.

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This research aims to evaluate the strength development and microstructure of a green mortar produced from waste red brick powder (WRP) as a partial cement replacement. The mortar samples were prepared with various WRP content of 0%, 10%, 20%, 30%, and 40% of total binder weight, and the w/b was fixed at 0.4. The fresh properties were checked by flowability and fresh unit weight. While the compressive strength was conducted up to 28 days. The mortar samples exhibited a reduction in flowability and unit weight with increasing WRP content. The incorporation of 10%-20% WRP improved the compressive strength of mortar samples at 28-day, while the compressive strength reduced with higher WRP content (30%-40%). The C-S-H/CaCO3 gel, Ca(OH)2 and ettringite were hydration products of WRP mortar samples. The incorporation with WRP significantly reduced the Ca(OH)2 content

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Section: Introductionmentioning

confidence: 99%