“…This bio-concrete formulation consisted of 62 wt% cement (CEM II/B-LL32.5R CE NF), 23 wt% sand (particle size 0–4 mm) and 15 wt % date palm fibres (mean diameter = 3 mm). A water to cement ratio W/C of 0.68 was chosen in accordance with previous works [[1], [2], [3], [4]]. Fig.…”
Section: Experimental Design Materials and Methodsmentioning
The present data article is concerned with the hygrothermal performance at the wall scale of a new bio-based building material including date palm fibres. A specific test setup allowed to measure temperature and relative humidity (RH) profiles at three different depths of the bio-based wall subjected to outdoor boundary conditions. Besides, a partial differential equations resolution software was then used to solve two mathematical models (i.e., Kunzel and Mendes models) describing heat and moisture transfer in porous building materials. Both experimental/simulated temperature and RH profiles are provided with this dataset article. The proposed experimental setup can be used for studying the hygrothermal performance of different kinds of bio-based building materials at wall scale, while experimental/numerical data can serve as reference values for the validation of mathematical models intended to describe heat and mass transfer.
“…This bio-concrete formulation consisted of 62 wt% cement (CEM II/B-LL32.5R CE NF), 23 wt% sand (particle size 0–4 mm) and 15 wt % date palm fibres (mean diameter = 3 mm). A water to cement ratio W/C of 0.68 was chosen in accordance with previous works [[1], [2], [3], [4]]. Fig.…”
Section: Experimental Design Materials and Methodsmentioning
The present data article is concerned with the hygrothermal performance at the wall scale of a new bio-based building material including date palm fibres. A specific test setup allowed to measure temperature and relative humidity (RH) profiles at three different depths of the bio-based wall subjected to outdoor boundary conditions. Besides, a partial differential equations resolution software was then used to solve two mathematical models (i.e., Kunzel and Mendes models) describing heat and moisture transfer in porous building materials. Both experimental/simulated temperature and RH profiles are provided with this dataset article. The proposed experimental setup can be used for studying the hygrothermal performance of different kinds of bio-based building materials at wall scale, while experimental/numerical data can serve as reference values for the validation of mathematical models intended to describe heat and mass transfer.
“…In cement matrices, the proportion of fibers hardly exceeds 5% [ 53 , 66 , 67 ]. Studies with higher percentages show little wettability of the fibers concerning the matrix, resulting in a drop in the mechanical characteristics [ 13 ].…”
Section: Properties and Importance Of Use In Cementitious Materialsmentioning
confidence: 99%
“…Geopolymer composites of fly ash with pineapple fibers showed an improvement in compressive strength, reaching 41.5 MPa and a flexural strength of 9.2 MPa. The reference without fibers presented a compressive strength of 12 MPa and flexural strength of 6 MPa [ 10 ]; coconut fibers treated in alkaline medium increase its ductility associated with the reduction in lignin with this treatment [ 11 ]; although it was difficult to homogenize with cementitious composites, the addition of 10–15 mm long jute fibers contributes to an increase in compressive, flexural, and tensile strength when it was equally distributed [ 12 ]; palm nuts showed an improvement in flexural strength [ 3 ]; palm fibers reduced the appearance of cracks due to the modification of the surface fiber after treatment [ 13 ]; açai fibers reduced the density of the hardened mortar and increased the flexural strength provided by a great interface between fiber and cementitious composite [ 14 ].…”
The use of natural lignocellulosic fibers has become popular all over the world, as they are abundant, low-cost materials that favor a series of technological properties when used in cementitious composites. Due to its climate and geographic characteristics, Brazil has an abundant variety of natural fibers that have great potential for use in civil construction. The objective of this work is to present the main concepts about lignocellulosic fibers in cementitious composites, highlighting the innovation and advances in this topic in relation to countries such as Brazil, which has a worldwide prominence in the production of natural fibers. For this, some common characteristics of lignocellulosic fibers will be observed, such as their source, their proportion of natural polymers (biological structure of the fiber), their density and other mechanical characteristics. This information is compared with the mechanical characteristics of synthetic fibers to analyze the performance of composites reinforced with both types of fibers. Despite being inferior in tensile and flexural strength, composites made from vegetable fibers have an advantage in relation to their low density. The interface between the fiber and the composite matrix is what will define the final characteristics of the composite material. Due to this, different fibers (reinforcement materials) were analyzed in the literature in order to observe their characteristics in cementitious composites. Finally, the different surface treatments through which the fibers undergo will determine the fiber–matrix interface and the final characteristics of the cementitious composite.
“…Many researchers have been investigating the feasibility of using date palm fibers (DPF) in cement-based materials [4][5][6][7][8][9][10][11][12][13][14][15][16]. They concluded that some properties of concrete and mortar could be improved.…”
Section: Introductionmentioning
confidence: 99%
“…It was found that the water absorption increased with DPF content [4,10,11]. Swelling, drying shrinkage, and chemical resistance to acidic solutions were investigated for mortar containing DPF [12], showing better performance than control mortar against shrinkage and acidic attacks. To improve the mechanical properties of reinforced DPF mortar, the DPFs are pretreated by different methods such as boiling in water, immersing in sodium and calcium hydroxide, and coating with oil [13][14][15].…”
This paper presents the results of a study conducted to investigate the effects of incorporating Sefri Date Palm Leave Fibers (SDPLF) into the mortar. A total of seven mixtures were prepared and tested. SDPLF were collected from local farms. The fibers were then cleaned, dried, and cut to different sizes of 10 mm, 20 mm, and 50 mm, maintaining the same individual fiber width of approximately 5±2 mm. The content of SDPLF in mortars was kept to 1% and 3% by mass. The physical and mechanical properties of SDPLF fibers and SDPLF mortars were investigated. The compressive strength at 7, 14, and 28 days was determined. The water absorption rate test was carried out on mortars containing 1% SDPLF fibers. The results showed that mortars with SDPLF have lower workability, lower density, and lower compressive strength as compared to control mortars. However, they are still acceptable for use in construction works. Mortars containing 10 mm and 20 mm SDPLF fibers by mass showed significant improvement in terms of water absorption rate as compared to the control mortar.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
