4 天之前 · The mortar composition followed the specifications of BS 5628-1 [30] and was produced with Portland cement, lime, and sand. The Portland-composite cement used in the mixture corresponds to the slag-modified type I(SM) defined by ASTM C595 [31]. The lime used was hydrated dolomitic lime, classified in Brazil as a CH-III, suitable for both load ...

4 天之前 · Mortar is a construction material in the form of a paste produced from the application of water into the mixture of binding materials and sand which sets and hardens over a period (Fig. 1).The binding materials can be in the form of cement or lime, gypsum and clay or their combination (Gillot and Couteals 2018).Mortar is an indispensable composite in construction due to its suitability as ...

1 天前 · To prepare the hydrophobic basalt fiber mortar (HBFM), cement and fine sand were first dry mixed. ... Shandong University of Science and Technology, Shandong, 266590, China. Yunfeng Li & Ning Wang ...

4 天之前 · This study investigates the feasibility of using crumb rubber as a partial sand replacement in cement mortar, aiming to address environmental challenges associated with tire waste while contributing to sustainable construction practices. The experimental phase involved preparing cement mortar samples with varying percentages of crumb rubber and analyzing the resulting compressive strength ...

2025年3月6日 · The modified mortar exhibited a 30% increase in compressive strength, reaching 38.62 MPa compared to 33.05 MPa in conventional mortar, with an additional 0.6% plastic fiber incorporation.

Microscopic analyses revealed that the incorporation of RCA led to changes in the mineral composition, particularly an increase in SiO 2, CaCO 3 and Ca (OH) 2 content. Furthermore, the presence of RCA enhanced the hydration of cement, resulting in the formation of additional CaCO 3 …

2025年1月17日 · Incorporating pozzolan enhances compressive strength, immersion and capillary absorption with increases up to 21 %, 20.7 %, and 40 %, respectively, compared to the control mortar (CM). Statistical analysis shows that the proposed predicting models are effective and applicable since their correlation coefficients (R 2) range between 0.91 and 0.99.

2025年2月18日 · Seven different formulations were tested alongside traditional mortar with the most effective of the new mortar mixes proving to be 7% untreated silica aerogels replacing natural sand combined with 3% recycled PET (polyethene terephthalate) plastic.

2025年2月19日 · Publishing in the journal Construction and Building Material, the team shows that the new mortar mix reduced heat loss by up to 55% compared to conventional mortar, while maintaining the...

2021年8月6日 · Mortars are artificial building materials composed of (1) one or more inorganic binders, whose main function is to join loose grains together by means of different chemical transformations in their mass; (2) one or more aggregates (or sands), which are added to confer volume stability on the mortar mass during drying and enhance the mechanical ...