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Journal articles on the topic 'Flow of mortar'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Neupane, Upendra, Parnthep Julnipitawong, Somnuk Tangtermsirikul, and Akino Yusuke. "EFFECT OF VISCOSITY MODIFYING AGENTS ON DEWATERING UNDER PRESSURE AND THE PERFORMANCES OF MORTAR AND CONCRETE." ASEAN Engineering Journal 7, no. 2 (2017): 18–29. http://dx.doi.org/10.11113/aej.v7.15491.

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This study emphasizes the effect of viscosity modifying agents (VMAs) on bleeding and dewatering of fresh mortars under high pressure. A detailed experimental dewatering device was designed and the analysis was carried out in order to evaluate the influence of two types of VMA on dewatering of freshly mixed mortars under high pressure. Additionally, the influence of the VMAs on mortar flow and air content of concrete was investigated. Two different types of VMA, which are a surfactant type and a starch ether type with various dosages were used in the tested mortar and concrete sample having th

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2

Khan, Sher Baz, and Hamza Tahir. "Properties of Anti-spalling Self-compacting Mortars - An Approach Towards Multifunctional Building Composite." European Journal of Engineering and Technology Research 6, no. 2 (2021): 67–69. http://dx.doi.org/10.24018/ejers.2021.6.2.2364.

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This study investigates the micro structural studies of self-compacting mortars by the addition of PP, Nylon and Jute fibers and the amount of Gypsum formed. The amount of all fibers in the proposed mix was limited to 0.5% by weight of the mortar. Four types of mortars one of which was reference mortar and other three mortars contained PP, Nylon and Jute fibers of amount 0.5% by weight, respectively. The workability of the self-compacting mortars was monitored by Mini Slump Flow diameter test. From the results it was found that more compacted microstructure and less amount of Gypsum formation

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3

Khan, Sher Baz, and Hamza Tahir. "Properties of Anti-spalling Self-compacting Mortars - An Approach Towards Multifunctional Building Composite." European Journal of Engineering and Technology Research 6, no. 2 (2021): 67–69. http://dx.doi.org/10.24018/ejeng.2021.6.2.2364.

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This study investigates the micro structural studies of self-compacting mortars by the addition of PP, Nylon and Jute fibers and the amount of Gypsum formed. The amount of all fibers in the proposed mix was limited to 0.5% by weight of the mortar. Four types of mortars one of which was reference mortar and other three mortars contained PP, Nylon and Jute fibers of amount 0.5% by weight, respectively. The workability of the self-compacting mortars was monitored by Mini Slump Flow diameter test. From the results it was found that more compacted microstructure and less amount of Gypsum formation

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4

Jeong, Jae Eun, Keun Hyeok Yang, and In Gu Yun. "Effect of Corrosion Inhibitor on the Compressive Strength of Polymer-Modified Cement Mortars." Applied Mechanics and Materials 692 (November 2014): 482–85. http://dx.doi.org/10.4028/www.scientific.net/amm.692.482.

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This study examined initial flow and compressive strength development of polymer-modified cement mortar according to the addition of corrosion inhibitor. Test results showed that with the increase of the amount of corrosion inhibitor, the initial flow of mortars increased whereas compressive strength decreased. The strength development of mortar specimens could be reasonably predicted using the modified ACI 209 equations.

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5

Safiuddin, Md, J. S. West, and K. A. Soudki. "Flowing ability of self-consolidating concrete and its binder paste and mortar components incorporating rice husk ash." Canadian Journal of Civil Engineering 37, no. 3 (2010): 401–12. http://dx.doi.org/10.1139/l09-155.

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This paper presents the flowing abilities of various self-consolidating concretes (SCCs) and their binder paste and mortar components. The binder pastes and mortars were formulated from the concrete mixtures and tested for flowing ability with respect to flow time and flow spread, respectively, at various dosages of high-range water reducing admixture (HRWRA). The concrete mixtures were prepared with different water (W) to binder (B) ratios and rice husk ash (RHA) contents. The flowing ability of the concretes was measured with regard to slump flow, orimet flow time and flow spread, and invert

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6

Bauerová, Pavla, Pavel Reiterman, Milena Pavlíková, Magdalena Kracík Štorkánová, and Martin Keppert. "FRESH STATE PROPERTIES OF LIME MORTARS WITH FLAX OIL ADMIXTURE." Acta Polytechnica CTU Proceedings 22 (July 25, 2019): 7–11. http://dx.doi.org/10.14311/app.2019.22.0007.

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Flax oil has been used as mortar improving, hydrophobic, admixture already in ancient times. The paper describes the identification of flax oil in mosaic mortar from ca. 1900 by help of FTIR spectroscopy. This historic mortar was reproduced by nowadays raw materials and the influence of flax oil on consistency and air entraining of fresh mortar was tested. It was found that already small amount of oil caused significant air entrainment, which, simultaneously with water repellency action, may contribute to higher durability of mortar with oil admixture. The flux oil influenced also consistency

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7

Muhammad, Prasetyo, and Djoko Priambodo. "Kuat Tekan dan Kuat Tarik Mortar sebagai Bahan Graut dengan Faktor Air Semen Optimum." Jurnal Teknik Transportasi 1, no. 1 (2020): 10. http://dx.doi.org/10.54324/jtt.v1i1.427.

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Grout works as a binding agents of wall construction, paste parts on precast concrete, a filler on concrete or crack also sealing a conctrete join. The purpose of this study is knowing optimum concrete grout composition. Grout strength hopefully can fulfill compression and tension strength needed, fulfill slashyness requirements, no bleeding and no segregration. Research began with preliminary test of mortar composition charasteristics. Most of fine aggregate composition using sand with slightly fine sand gradation. The mortar slashyness test using mortar flow and funnel test that flow time of

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8

Yang, Xiaojie, Jianfeng Zhao, Haoxin Li, Piqi Zhao, and Qin Chen. "Recycling red mud from the production of aluminium as a red cement-based mortar." Waste Management & Research: The Journal for a Sustainable Circular Economy 35, no. 5 (2017): 500–507. http://dx.doi.org/10.1177/0734242x16684386.

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Current management for red mud is insufficient and a new method is needed. A series of experiments have been carried out to develop a new approach for effective management of red mud. Mortars without or with 3%, 6% and 9% red mud were prepared and their fresh and hardened properties were measured to access the possibility of recycling the red mud in the production of red cement-based mortar. The mechanisms corresponding to their mechanical performance variations were explored by X-ray powder diffraction and scanning electron microscopy. The results show that the fresh mortars with red mud pres

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9

Zhang, Zhe, Pan Zou, Yiguang Wang, and Xun Zhang. "Impact of Nano-CaCO3 and PVA Fiber on Properties of Fresh and Hardened Geopolymer Mortar." Buildings 13, no. 6 (2023): 1380. http://dx.doi.org/10.3390/buildings13061380.

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Geopolymer is a green substitute for Portland cement but has low tensile strength, high brittleness and easy cracking. Therefore, fibers and nanomaterials are used to strengthen and toughen geopolymer composites. The influence of nano-calcium carbonate and PVA fiber on the properties of fresh and hardened geopolymer mortar were studied herein. The hybrid of long and short fibers with small content (0.8 vol.%) is conducive to flowability, while the hybrid with large content (1.6 vol.%) and nano-calcium carbonate is conducive to flowability. The slump flow and flow rate of geopolymer mortars wit

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10

Gomes, Leandro Martins, Angélica Aroche, Maurício Schafer, et al. "Influence of Cellulose Pulp Waste in Plastering Mortar." Key Engineering Materials 634 (December 2014): 222–34. http://dx.doi.org/10.4028/www.scientific.net/kem.634.222.

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The objective of the present study was to assess the properties of plastering mortar that uses cellulose pulp waste as absorbent material. Waste was characterized by thermogravimetric analysis (TGA), Fourier Transform Infrared Spectroscopy (FTIR), scanning electron microscope (SEM), X-ray diffraction (XRD, and absorption of aqueous solutions with pH variations. The incorporation of 0.5%, 1% and 1.5% of waste in a plastering mortar prepared with Portland cement, lime and sand (1:1:6) was proved viable. Mortars were analyzed and compared with a control mortar. The properties of fresh mortars ana

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11

Li, Jin, Peiyuan Chen, Haibing Cai, Ying Xu, and Chunchao Li. "Preliminary Study on the Utilization of RHA as a Performance Enhancer for Rubber Mortar." Materials 14, no. 12 (2021): 3216. http://dx.doi.org/10.3390/ma14123216.

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In this study, rice husk ash (RHA) was explored as a strength enhancer for mortars containing waste rubber. The effects of RHA on the flow, mechanical strength, chloride resistance, and capillary absorption of rubber mortar were investigated by substituting up to 20% cement with RHA. The experimental results showed that the incorporation of rubber into mortar could be safely achieved by adding RHA as a cement substitute by up to 20% without compromising the compressive strength of mortar. Moreover, the RHA also exerted positive effects on the enhancement of the chloride resistance as well as t

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12

Zhang, Liang, Xiaomei Shao, and Faquan Li. "Research and Engineering Application on Impact and Abrasion Resistance of CW Elastic Epoxy Mortar." Journal of Physics: Conference Series 2941, no. 1 (2025): 012051. https://doi.org/10.1088/1742-6596/2941/1/012051.

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Abstract Using epoxy mortar for coating protection is one of the effective ways to improve the impact and abrasion resistance of hydraulic structures. For the sake of improving the impact and abrasion resistance of ordinary epoxy mortar, high-toughness epoxy resin, low-exothermic curing agent, graded fillers, and other raw materials were used to prepare CW elastic epoxy mortar and the mechanical properties of elastic epoxy mortar were compared with other epoxy mortars. Moreover, the structural characteristics of elastic epoxy mortar were analyzed using SEM, and the engineering application case

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13

Yang, Song, Jingbin Zhang, Xuehui An, et al. "The Effect of Sand Type on the Rheological Properties of Self-Compacting Mortar." Buildings 11, no. 10 (2021): 441. http://dx.doi.org/10.3390/buildings11100441.

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In order to understand the effect of sand type on the rheological properties of self-compacting mortar, four varieties of sand, namely, quartz sand (QS), river sand (RS), and two kinds of manufactured sand, marked as MS-A and MS-B, were studied. As part of this study, the sands’ particle shape parameters, such as their length:width ratio and roundness, were determined. Mortars containing the four varieties of sand were tested using the slump flow test and the V-funnel test in oven-dried (OD) and saturated surface-dried (SSD) conditions in order to identify the water absorption, shape-related d

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14

Wulan, Soca Anggoro, Iman Satyarno, and Ashar Saputra. "Mix Design of Self Compacting Concrete Based on Ultra High Compressive Strength Flow Mortar Mix." Journal of the Civil Engineering Forum 4, no. 1 (2018): 91. http://dx.doi.org/10.22146/jcef.29797.

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Mix design of Self Compacting Concrete or SCC is not straight forward because many parameters control its rheological properties. The case becomes more complicated if high compressive strength is also to be achieved. Therefore simpler approach is used, that is by firstly determining the flow mortar mix which is easier to be designed even with the requirement of ultra-high compressive strength. The mix design of SCC is then determined by simply adding the coarse aggregate with a certain amount of that mortar mix. In this research the ultra-high compressive strength flow mortar was made of Type

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15

Sothornchaiwit, Kantiya, Warayut Dokduea, Weerachart Tangchirapat, Suraparb Keawsawasvong, Chanachai Thongchom, and Chai Jaturapitakkul. "Influences of Silica Fume on Compressive Strength and Chemical Resistances of High Calcium Fly Ash-Based Alkali-Activated Mortar." Sustainability 14, no. 5 (2022): 2652. http://dx.doi.org/10.3390/su14052652.

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Although elevated temperature curing can increase the compressive strength of alkali-activated mortar, its field applications are still limited. In this study, alkali-activated mortars were prepared using high calcium fly ash (FA) as a precursor. Small amounts of silica fume were used to partially replace high calcium fly ash at 3–9% by weight to increase the strength of alkali-activated mortar. All mixtures had a liquid to binder ratio of 0.60 and sand to binder ratio of 2.75 by weight. A ratio of NaOH to Na2SiO3 solution was kept at 2:1 by weight. Mortar flow was also held between 105–115 us

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16

Manikandan, P., V. Vasugi, V. Prem Kumar, et al. "A Neural Network-Based Prediction of Superplasticizers Effect on the Workability and Compressive Characteristics of Portland Pozzolana Cement-Based Mortars." Advances in Materials Science and Engineering 2023 (May 16, 2023): 1–14. http://dx.doi.org/10.1155/2023/2605414.

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Portland Pozzolana Cement (PPC) mortars are predominantly employed in plastering works to achieve better workability, superior surface finish, and higher fineness to offer better cohesion with fine aggregates than the ordinary Portland cement (OPC) mortars. To achieve high performance in the cement mortar similar to cement concrete, the addition of a superplasticizer is recommended. The present study investigates the impact of addition of sulphonated naphthalene formaldehyde- (SNF)-based (0.5%, 0.6%, 0.7%, and 0.8%) and lignosulphate- (LS)-based (0.2%, 0.3%, 0.4%, and 0.5%) superplasticizers o

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17

Gismera, Sara, María del Mar Alonso, Marta Palacios, and Francisca Puertas. "Rheology of Alkali-Activated Mortars: Influence of Particle Size and Nature of Aggregates." Minerals 10, no. 8 (2020): 726. http://dx.doi.org/10.3390/min10080726.

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The effect of two precursors (slag and fly ash), different particle size distribution, and three types of aggregate (siliceous sand, limestone, and recycled concrete) on alkali-activated material (AAM) mortar rheology were studied and compared to their effect on an ordinary Portland Cement (OPC) mortar reference. Stress growth and flow curve tests were conducted to determine plastic viscosity and static and dynamic yield stress of the AAM and OPC mortars. In both OPC and AAM mortars, a reduction of the aggregate size induces a rise of the liquid demand to preserve the plastic consistency of th

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18

Phan, V. T. "Influence of Tack Speed on The Rheological Properties of Mortar in Fresh State." Engineering, Technology & Applied Science Research 10, no. 5 (2020): 6249–52. https://doi.org/10.48084/etasr.3756.

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In the present work, the squeeze flow techniques were used to investigate the influence of tack speed to the rheological properties of mortar in fresh sate, including yield stress and extensional viscosity.Tested samples were prepared under similar conditions of room temperature and atmospheric pressure. Compositions of mortars were tested at two different squeezing rates (20 and 200 mm/s) 15 min after mixing. Results indicate that mortar’s yield stress increases with the increasing of the pulling speed. This increase is evident at low tensile speeds. At high speed of tack, this increase

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19

Thuy, Nguyen Thi Bich, Somnuk Tangtermsirikul, Tran Van Mien, and Bui Anh Kiet. "Effects of High Loss on Ignition Fly Ash as a Partial Replacement for Sand on the Properties of Mortars." Engineering, Technology & Applied Science Research 14, no. 4 (2024): 15226–32. http://dx.doi.org/10.48084/etasr.7782.

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This study investigates the effects of fly ash with a high unburned carbon content as a partial sand replacement material on the properties of mortars. Fly ash was added to the mortar in four different ratios: 0, 10, 30, and 50% by volume. This study examined two series of mortar mix proportions, one having a controlled water-to-cement ratio and the other having a controlled flow. The fresh properties and compressive strength of the mortars were investigated. The experimental results showed that the compressive strength increased with increasing fly ash-to-aggregate ratio (FA/A). However, the

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20

Nikoloutsopoulos, Nikolaos D., Zacharias G. Pandermarakis, Aikaterini Papadioti, and Panagiotis Douvis. "Complete Experimental Investigation for Short Polypropylene Fiber Reinforced Cement Mortars." Key Engineering Materials 902 (October 29, 2021): 161–68. http://dx.doi.org/10.4028/www.scientific.net/kem.902.161.

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In this study we investigate the addition of short polypropylene (PP) fibers in cement mortars for a wide volume percentage range. These fibers are dispersed easily in fresh mortar and create a dense network, whereas have as result the cracking reduction during dry shrinkage and the improvement of post peak response. A modified superplasticizer by lignosulfonate polymers basis was used, that keeps at low level the water to cement ratio and thus resulting to an improved mortar’s workability. Compressive strength, three-point flexural strength, drying shrinkage of hardened mortar, flow table tes

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21

Plugin, Andrii, Liudmyla Trykoz, Oleksandr Donets, Andrii Nykytynskyj, and Anton Pluhin. "Diagnostics and regulation of rheological characteristics for injection mortars by electromechanical sensors." E3S Web of Conferences 166 (2020): 06006. http://dx.doi.org/10.1051/e3sconf/202016606006.

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In the article the diagnostic and regulation problems are considered for the rheological characteristics of mortars which are used for pumping into the interpipe gaps or cracks during repairing the pipelines, tunnels, and other objects. It is important to obtain the necessary mortar viscosity which allows providing a complete hole filling. For this aim the experimental dependencies have been determined between the injection mortar viscosity, the water-cement ratio, and the additives quantity in the mortars. According to the Poiseuille’s flow law the theoretical dependencies have been obtained

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22

Hwang, Soo-Duck, Kamal H. Khayat, and Richard Morin. "Specifications and testing of self-consolidating mortar designated for annular space grouting." Canadian Journal of Civil Engineering 38, no. 4 (2011): 422–32. http://dx.doi.org/10.1139/l11-011.

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An experimental program was undertaken to evaluate the performance of self-consolidating mortar designed for filling small annular spaces for the rehabilitation of underground water line or sewage pipelines. The study also intended to establish a testing protocol to validate the workability of repair grout. All the investigated mixtures had good filling and passing ability with adequate retention of workability over 3 h. The repair mortars exhibited high stability with bleeding lower than 0.3% compared to 3% bleeding in the case of the reference neat cement grout. The reference grout had a low

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23

Benyahia, Amar, Mohamed Salhi, and Toufik Boubekeur. "Effects of Waste Glass Powder on Properties of Self-Compacting Repair Mortars." International Journal of Engineering Research in Africa 62 (November 23, 2022): 43–56. http://dx.doi.org/10.4028/p-1eiar8.

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This paper studies the effects of fine waste glass powder content (WGP) on fresh and hardened properties of self-compacting repair mortar mixes (SCRMs). For this purpose, mortar mixes were prepared to replace cement with waste glass powder ranging from 0 to 30% at 10% interval and tested. Fresh properties were assessed using mini-slump flow and mini V-funnel. Hardened properties assessed for all mixes were water absorption (at 28-days of age), compressive and flexural strengths (at 7, 28 and 56-days of age). In addition, the adhesion between the repair mortar mixes and substrate was conducted

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Safiuddin, Md, George Abdel-Sayed, and Nataliya Hearn. "Effects of Pitch-Based Short Carbon Fibers on the Workability, Unit Weight, and Air Content of Mortar Composite." Fibers 6, no. 3 (2018): 63. http://dx.doi.org/10.3390/fib6030063.

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Pitch is a viscoelastic polymer material consisting of aromatic hydrocarbons. It is used to produce carbon fibers with sheet-like crystal structures. The aim of the work presented in this paper was to evaluate the effects of pitch-based short carbon fibers on the workability, unit weight, and air content of freshly mixed mortar composite. Experimental investigation was carried out on five different types of mortar composite, including a control mortar. Four mortar composites were prepared including pitch-based short carbon fibers with 1–4% volume contents. The fresh mortar composites were test

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25

Chahour, Kahina, Hamza Mechakra, Brahim Safi, Nacera-Melissa Dehbi, and Cylia Chaibet. "Rheological and mechanical behavior study of eco-friendly cement mortar made with marble powder." International Journal of Applied Mechanics and Engineering 29, no. 1 (2024): 19–35. http://dx.doi.org/10.59441/ijame/176204.

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The work aim is to investigate the rheological and mechanical behavior of eco-friendly mortar made with marble powder. Marble have used as sand by total substitution of natural sand and as additional materials by partial substitution of cement. Firstly, rheological tests were carried out on the cement pastes in order to studying the effect of cement substitution by marble powder on the rheological behavior. Secondly, our study is devoted to evaluate the mechanical performances (flexural strength, compressive strength, mechanical behavior and ultrasonic pulse velocity) of a fluid mortar such as

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Pan, Qun, Bin Zhu, Xiao Huang, and Lin Liu. "Properties of Alkli-Activated Slag Cement Compounded with Soluble Glasses with a High Silicate Modulus." Advanced Materials Research 712-715 (June 2013): 905–8. http://dx.doi.org/10.4028/www.scientific.net/amr.712-715.905.

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Properties of alkali-activated slag cements compounded with soluble glasse with a high silicate modulus Ms=2.6 were detailedly studied in this paper, including compressive strength and flexure strength characterictics at the ages of 3,7,28 days and flow values of fresh cement mixtures on a jolting table. As a result, with the compressive strength at the age of 28 days of 95.6-107.8 MPa has been developed, and the flow values and strength characteristics of alkali-activated slag cement mortars increased with increase in a water to cement (alkaline activator solution to slag) ratio, and the flow

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Righ, Débora P., Elizabete Y. B. Nakanishi, Larissa D. Kirchhof, Gihad Mohamad, and Mônica R. Garcez. "Mortar Effect of Rice Husk Ash Burning on Fluidized Flow and Sliding Grid." Key Engineering Materials 634 (December 2014): 256–65. http://dx.doi.org/10.4028/www.scientific.net/kem.634.256.

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The rice in the south of Brazil is one of the main economy activities, which produce a large volume of waste coming from the beneficiation industries. The main goal of this research is evaluate the feasibility of use of rice husk ash, burning on fluidized flow (FF) and sliding grid (SG) for mortars. The characterization methods of rice husk ash (RHA) included loss on ignition, particle size distribution by laser, x-ray diffraction, x-ray fluorescence spectrometer, pozzolanic activity index and specific mass. Mortar specimens were molded with the proportion of 1:3 in mass and water/binder ratio

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Mansour, Sabria Malika, Youcef Ghernouti, and Rabah Chaid. "Valorization of calcined kaolinitic clay used in high performance mortar." Journal of Building Materials and Structures 7, no. 1 (2020): 32–41. http://dx.doi.org/10.34118/jbms.v7i1.76.

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In this work, an experimental investigation was carried out to evaluate the potential of an industrial pozzolan, the metakaolin, on the behavior of mortar. The aim is to use metakaolin as a 10% partial replacement of cement. Its effect on the physico-mechanical properties of the mortar has been analyzed. The results show that the incorporation of metakaolin decreases the density of the dried mortar and increases that of the wet mortar but these remain lower than those of the control mortar. Moreover, thermal analysis ATD / ATG shows that in the heat flow curve appears two endothermic peaks whi

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Mansour, S. M., Y. Ghernouti, and R. Chaid. "Valorization of calcined kaolinitic clay used in high performance mortar." Journal of Building Materials and Structures 7, no. 1 (2020): 32–41. https://doi.org/10.5281/zenodo.3735759.

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<strong>Abstract</strong>: In this work, an experimental investigation was carried out to evaluate the potential of an industrial pozzolan, the metakaolin, on the behavior of mortar. The aim is to use metakaolin as a 10% partial replacement of cement. Its effect on the physico-mechanical properties of the mortar has been analyzed. The results show that the incorporation of metakaolin decreases the density of the dried mortar and increases that of the wet mortar but these remain lower than those of the control mortar. Moreover, thermal analysis ATD / ATG shows that in the heat flow curve appear

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30

Dantas, Sérgio Roberto Andrade, Ramoel Serafini, Roberto Cesar de Oliveira Romano, Fúlvio Vittorino, and Kai Loh. "Influence of polypropylene microfibre (PPMF) dispersion procedure on fresh and hardened rendering mortar properties." Ambiente Construído 20, no. 2 (2020): 7–23. http://dx.doi.org/10.1590/s1678-86212020000200384.

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Abstract This study was carried out to evaluate the influence of a polypropylene microfibre (PPMF) dispersion procedure on fresh and hardened state properties of rendering mortars. Specimens prepared with two different PPMF dispersion procedures were evaluated comparatively with reference specimens prepared without adding PPMF. Changes in the fresh properties were monitored using flow table, squeeze flow, and air-entrainment tests. The hardened state was characterized by capillary water absorption, air-permeability, dynamic elastic modulus (E), tensile strength according to the Brazilian test,

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31

Aierken, Ailifeila, Shilin Luo, Jianqing Jiang, et al. "Experimental and Numerical Studies on Flowing Properties of Grouting Mortar Based on the Modified MPS Method." Geofluids 2022 (June 22, 2022): 1–9. http://dx.doi.org/10.1155/2022/4042418.

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Grouting mortar has widespread application in engineering because of the advantages of good durability, low cost, and environmental friendliness. To study the flowing properties of grouting mortar, laboratory minislump tests taking different rheological parameters of grouting mortar into consideration were conducted to obtain the flow time and flow pattern of grouting mortar. A modified MPS method (moving-particle semi-implicit method) introduced two sections of Bingham rheological, and segregation was proposed. The effects of the plastic viscosity on the flow state of mortar were studied, and

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32

Casali, Juliana Machado, Fernanda Domigues Melo, Vitoria Carminatti Serpa, Alexandre Lima de Oliveira, Andrea Murillo Betioli, and Luciana Maltez Lengler Calçada. "Influence of cement type and water content on the fresh state properties of ready mix mortar." Ambiente Construído 18, no. 2 (2018): 33–52. http://dx.doi.org/10.1590/s1678-86212018000200241.

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Abstract The main characteristic of ready mix mortar is to remain workable for up to 72hours after mixing. This greater duration of workability is obtained by use of hydration stabilizing admixtures and air-entrained admixtures. Thus, the behavior of this mortar depends on the compatibility between Portland cement and these two admixtures. Within this context, the objective of this article is to evaluate the influence of Portland cement type and water content on the properties of ready mix mortars in fresh state. Three types of Portland cement and four water/dry material ratios were evaluated.

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33

Nehari, Abderrahim, Adem Ait Mohamed Amer, Adda Hadj Mostefa, et al. "The influence of fine recycled asphalt pavement aggregates on the properties of self-compacting mortar in fresh and hardened state." STUDIES IN ENGINEERING AND EXACT SCIENCES 5, no. 2 (2024): e10182. http://dx.doi.org/10.54021/seesv5n2-440.

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Sustainable development is a contemporary concern in the field of asphalt pavements, as road construction consumes a significant amount of new aggregates. Furthermore, road maintenance necessitates the milling of old pavement layers, which generates a substantial quantity of bituminous material waste. This study explores the use of recycled sand from asphalt waste as a substitute for 0, 25, 50, 75, and 100% of natural sand in self-compacting mortar, aiming to achieve both sustainable and economical asphalt production. The differences in physical properties between natural sand (NS) and fine re

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Zadorozhnyi, Andrii, Artur Kovrevski, Yuriy Chovnyuk, and Nikolay Remarchuk. "Flow of a Bingham Fluid Through Circular Pipes with Variable Viscosity Coefficient Along the Pipe Length." International Journal of Engineering & Technology 7, no. 4.3 (2018): 100. http://dx.doi.org/10.14419/ijet.v7i4.3.19716.

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Creation of conditions for optimal flow of Bingham media, such as ready-mixed concrete and mortar mixes, in the circular pipeline during delivery by various types of transporting equipment has not been sufficiently studied so far. Purpose: finding patterns of flow of concrete and mortar mixes in different sections of the pipeline, based on the variability of the viscosity coefficient when the medium is flowing through long circular pipes. In calculations of the flow capacity of mortar and concrete pipelines and the required power of the pumping equipment, the properties of concrete and mortar

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Li, Yun Liang, Yi Qiu Tan, Yang Jian Ou, and Jin Feng Wang. "Study on Influencing Factors of Flow-Ability of Cement Asphalt Mortar." Advanced Materials Research 243-249 (May 2011): 4240–43. http://dx.doi.org/10.4028/www.scientific.net/amr.243-249.4240.

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Flow-ability of CA mortar is characterized by fluidity, and the effects of the CA mortar fluidity according to water, time, and feeding sequence are studied. Studies have shown that the amount of the used of water affects the fluidity most, in which the suitable amount of water is between 0.23 and 0.28. With the time delay, the flow-ability of CA mortar is reduced. When mixed with SBR latex, the process of decay of the flow-ability is significantly reduced. Feeding sequence has great effect on fresh mixed CA mortar. In the mixing process, to avoid asphalt emulsion and cement dry material in di

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Dantas, Sérgio Roberto Andrade, Francisco Jordão Nunes de Lima, Roberto Cesar de Oliveira Romano, Rafael Pileggi, and Kai Loh. "Evaluation of rheological properties of mortar with TiO2 addition." Ambiente Construído 21, no. 4 (2021): 7–21. http://dx.doi.org/10.1590/s1678-86212021000400556.

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Abstract Adding TiO2 tocoating mortars is carried out to promote self-cleaning through photocatalytic activity. However, this addition influences the workability of the mortar and, consequently, the application stage as the TiO2 used can present a large number of fine particles and a high surface area, increasing the demand for mixing water, requiring consistency adjustments before coating. In this work, three mortars (two with the addition of different types of TiO2 and one reference) were developed on a laboratory scale to maintain similar workability, using the flow table test. The amount o

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Bindiganavile, Vivek, Md Toihidul Islam, and Narayana Suresh. "Evaluation of Water Permeability in Fibre Reinforced Hydraulic Lime Mortar Intended for Conservation." Key Engineering Materials 711 (September 2016): 630–37. http://dx.doi.org/10.4028/www.scientific.net/kem.711.630.

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Much of the existing water infrastructure across the world was constructed using masonry in the last 200 years and many of these structures were built with pre-Portland cement binders. Although these mortars exhibit good workability and high water retention in the plastic state, the water tightness deteriorates over the years resulting in a pressing need for suitable repair materials. The addition of polypropylene micorfibre in cement-based systems was found to be effective in reducing water permeability. But the effect of polymeric fibres on the permeability coefficient of hydraulic lime mort

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Alvansazyazdi, Mohammadfarid, Jenny Estefany Chandi Paucar, Fausto Enrique Chávez Guamán, et al. "Valorización del Bagazo de Caña de Azúcar en Nanosílice: Ruta Optimizada para Mejorar la Resistencia y la Sostenibilidad en Morteros de Cemento." INGENIO 8, no. 2 (2025): 95–106. https://doi.org/10.29166/ingenio.v8i2.8164.

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The present research aims to evaluate the influence of adding silica nanoparticles derived from sugarcane bagasse, synthesized in the laboratory using the sol-gel method, on the properties of cement mortar in both its fresh and hardened states. In the fresh state, the study examines workability, consistency, and flow, while in the hardened state, it evaluates compressive strength and hydrophobicity. Specimens were prepared using Type N and Type HS cement, with the addition of nano-silica particles at 0.25%, 0.50%, 0.75%, 1.00%, and 1.50% by weight as a replacement for cement in the control mor

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Yu, Jun, Hai Bin Zhu, and Ke Zhong Wang. "Investigation on Properties and Flow Degree of Rubberized Mortar under Dynamic Load in Metro." Advanced Materials Research 1061-1062 (December 2014): 382–85. http://dx.doi.org/10.4028/www.scientific.net/amr.1061-1062.382.

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It is one of focus topics that metro vibration affects foundations and environments. Assumed that crumb rubber mortar can be injected into foundations to form separate vibration layerbecause crumb rubber mortar is with better ductility and properties of vibration resistance,the layer decreases the effect of transportation load on foundation. Different diameters and volumes of rubber power were joined into the mortar to form rubber mortar by experiments. Then their flow degree and strenghth were measured and compared with ordinary mortar. The result shows that the rubber with smaller diameters

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Klangvijit, Wiwat, and Krissadang Sookramoon. "Study of the Mix Cement Properties of Mortar Cement Used in Masonry and Plaster from the Waste Biscuit Firing of Ceramic." MATEC Web of Conferences 187 (2018): 02005. http://dx.doi.org/10.1051/matecconf/201818702005.

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The purpose of this study is to study the characteristics of cement mixes and to find out the right qualities according to Mortar Cement in terms of flow formation period and compressive strength. This work was tested for the properties of cement Mortar at Research and Development Department, Department of Concrete Testing, Royal Irrigation Thailand in ASATM C 91-97C, and ASTM C 807-89 standard. The results of the study indicated that the formula of Mortar Cement A1 flow characteristics 112, the formation time was 45 minutes and the compression strength was on the average of 39.35 MPa. Mortar

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Fragata, Ana, Jorge Ribeiro, Carla Candeias, Ana Velosa, and Fernando Rocha. "Archaeological and Chemical Investigation on the High Imperial Mosaic Floor Mortars of the Domus Integrated in the Museum of Archaeology D. Diogo de Sousa, Braga, Portugal." Applied Sciences 11, no. 17 (2021): 8267. http://dx.doi.org/10.3390/app11178267.

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This paper intends to characterize the floor mortar layers (nucleus, rudus and statumen) of the high imperial mosaics of the domus integrated in the Museum of Archeology D. Diogo de Sousa, the oldest roman housing testimonies known in Braga, Portugal. It offers an important archaeological and historical contextualization and first chemical characterization attempt on the mortars. The study of 13 mortar samples was carried out at a chemical level through X-ray fluorescence spectroscopy (XRF). All samples presented low lime content when compared to similar studies. A high chemical similarity bet

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Zhang, Zhao, Qingge Feng, Weiwei Zhu, et al. "Influence of Sand-Cement Ratio and Polycarboxylate Superplasticizer on the Basic Properties of Mortar Based on Water Film Thickness." Materials 14, no. 17 (2021): 4850. http://dx.doi.org/10.3390/ma14174850.

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Previous studies demonstrated that water film thickness (WFT) is a key factor that affects the fluidity of mortar. Changes in the sand-cement (S/C) ratio and polycarboxylate superplasticizer (PCE) dosage will affect the WFT. In this study, several mortar samples with different S/C ratios and different PCE dosages were prepared, and the basic properties of the mortar were measured. The results show that as the S/C ratio increases, the packing density of the mortar will decrease, the WFT will decrease, and the cohesiveness will increase, resulting in a decrease in the flow spread and strength of

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Jura, Jakub. "Analysis of the Impact of Sludge and Slag Waste on the Basic Properties of Cement Mortars." System Safety: Human - Technical Facility - Environment 5, no. 1 (2023): 130–41. http://dx.doi.org/10.2478/czoto-2023-0015.

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Abstract The article examined the influence of two additives, which are post-production waste from metallurgical processes, on the basic properties of cement mortars. Sludge and slag waste were used for testing. Both wastes were examined in terms of their chemical composition using a spectrometer, their specific density and grain composition were determined. As part of the tests, a series of standard mortars were made and the results obtained for modified mortars were compared to them. The produced cement composites used waste in amounts of 5, 10, 15 and 20% of the cement mass, used as a subst

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Irshidat, Mohammad R., Nasser Al-Nuaimi, and Mohamed Rabie. "The Role of Polypropylene Microfibers in Thermal Properties and Post-Heating Behavior of Cementitious Composites." Materials 13, no. 12 (2020): 2676. http://dx.doi.org/10.3390/ma13122676.

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This paper experimentally studied the effect of polypropylene (PP) microfibers on thermal and post-heating mechanical behaviors of cementitious composites. Cement mortars with small dosage of polypropylene fibers were prepared, heated at various temperatures (150 °C, 200 °C, 450 °C, and 600 °C), and then tested. The investigated parameters include residual compressive and flexural strengths, elastic modulus, fracture energy, stress intensity factors, failure modes, microstructure (scanning electron microscopy (SEM) imaging), thermal conductivity, heat flow (differential scanning calorimetry (D

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Candamano, Sebastiano, Francesco Tassone, Ivan Iacobini, Fortunato Crea, and Piero De Fazio. "The Properties and Durability of Self-Leveling and Thixotropic Mortars with Recycled Sand." Applied Sciences 12, no. 5 (2022): 2732. http://dx.doi.org/10.3390/app12052732.

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In recent decades, relevant environmental and economic reasons have driven an increasing interest in using a large amount of recycled aggregate in replacement of natural ones to produce mortar and concrete. The present study aims to investigate the effect of substituting 100% of natural sand with recycled aggregate on fresh properties, mechanical properties, and the durability of a thixotropic and a self-leveling mortar. Recycled aggregate was characterized using X-ray diffractometry and energy-dispersive X-ray spectroscopy. Its morphology was investigated using scanning electron microscopy an

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MANALU, HARDIANTI, and Agus Sukarto Wismogroho. "Development of Mortar for Repair of Cracked Concrete with Injection Method." Journal of Technomaterial Physics 4, no. 1 (2022): 46–53. http://dx.doi.org/10.32734/jotp.v4i1.7779.

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This study aimed to develop a mortar with the addition of glass fiber as a mortar reinforcement with variations in the addition of glass fiber (0 gram; 5.99 grams; 17.97 grams) which was homogenized with variations in the addition of aggregate (5.32 kg; 2.66 kg; 0 kg) and cement variations (1.56 kg; 3.41 kg; 5.25 kg). Mortar is used as a material for repairing cracked concrete by using the injection method. The mortar tests carried out were mortar flow testing, flexural strength testing, compressive strength testing, adhesive strength testing, and OM observations. The results of the mortar flo

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Cechin, Gabriela, Carina Mariane Stolz, and Ângela Borges Masuero. "Influence of production systems on the properties of fresh and hardened shotcrete." Ambiente Construído 18, no. 2 (2018): 71–86. http://dx.doi.org/10.1590/s1678-86212018000200243.

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Abstract In modern shotcrete operations, the mixing and pumping steps are carried out using different production systems and equipment. This adds an element of uncertainty to the process because of variables such as mixer type, rotation speed, mixing time, etc. As a result, this may result in changes to the characteristics and properties of both fresh and hardened sprayed mortar and may ultimately impair the performance of the rendering material. This study assesses the influence of production systems, particularly the mixing process, on the properties of fresh and hardened sprayed mortar. The

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Hernández-Rodríguez, M. J., R. Santana Rodríguez, R. Darias, et al. "Effect of TiO2 Addition on Mortars: Characterization and Photoactivity." Applied Sciences 9, no. 13 (2019): 2598. http://dx.doi.org/10.3390/app9132598.

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In this study, mortar specimens were prepared with a cement:sand:water ratio of 1:3:0.5, in accordance with standard EN196-1. Portland CEM I 52.5 R grey (G) and white (W) cements were used, together with normalised sand and distilled water. Different amounts of TiO2 photocatalyst were incorporated in the preparation of the mortar samples. The effect of the addition of TiO2 was studied on mechanical properties of the mortar and cement including compressive and flexural strength, consistency (the flow table test), setting time and carbonation. Characterization techniques, including thermogravime

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Dewi, Frida Mustika, Mirza Ghulam Rifqi, and Muhammad Hilmy. "PENGARUH PENAMBAHAN ZAT ADITIF TIPE F (SUPERPLASTICIZER) DENGAN VARIASI PENGURANGAN AIR TERHADAP NILAI KUAT TEKAN PADA MORTAR." Jurnal Riset Teknik Sipil dan Sains 1, no. 1 (2022): 20–27. http://dx.doi.org/10.57203/jriteks.v1i1.2022.20-27.

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Many concrete technological innovations are expected to produce high quality. One of them is by improving the quality of the constituent material, namely mortar which functions as a matrix for binding aggregates in the concrete mixture. Reducing the water content in the mortar mixture results in a decrease in the workability of the mortar and causes the mortar to be hollow/porous so that the resulting quality decreases. Added materials are needed that can reduce the amount of water without reducing the value of flow. This study uses an additive type F (superplasticizer) with variations in wate

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Costa, M. R. M. M., E. Pereira, R. G. Pileggi, and M. A. Cincotto. "Study of the influential factors on the rheological behavior of adhesive mortar available in the market." Revista IBRACON de Estruturas e Materiais 6, no. 3 (2013): 399–413. http://dx.doi.org/10.1590/s1983-41952013000300005.

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Rheology studies the deformation and flow of matter and seeks to describe the deformations of material depending on the time they are exposed to mechanical actions. This paper proposes to understand the behavior of fresh mortar adhesives in Squeeze Flow tests based on rheological characterization of different commercial compositions. In the tests, flow of material results from the application of a compressive load on the sample in the fresh state which causes displacement due to stresses generated during radial shear flow. We performed further physical characterizations of mortars and viscosit

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