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4301
Improving the Quality of Mixed Recycled Coarse Aggregates from Construction and Demolition Waste Using Heavy Media Separation with Fe3O4 Suspension
Published 2017-01-01“…Next, a series of tests was performed in the laboratory to evaluate properties of finished sink and float products from the HMS processes, including oven-dry density, absorption capacity, and physical durability. Furthermore, compressive strength of concrete cylinders (150 mm by 300 mm) made of the finished sink products from Fe3O4 suspensions with three different densities (2.4, 2.5, and 2.6 g/cm3) was tested in this study. …”
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4302
Design and evaluation of oil well cement-based composite materials improved by multi-component flexible materials
Published 2025-01-01“…Different flexible materials form a synergistic effect by filling the interior of cement paste to improve its flexibility.…”
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4303
Effect of salinity of groundwater on the geotechnical properties of some Egyptian clay
Published 2017-09-01“…Properties obtained from tests carried out on samples mixed with water containing different salt contents are compared with those obtained from tests carried out on samples mixed with pure water (tap water). …”
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4304
Estimating Deterioration Rate of Some Carbonate Rocks Used as Building Materials under Repeated Frost Damage Process, China
Published 2020-01-01“…Then, 50 cycles of frost damage process was performed, and after each 10 cycles, the unconfined compressive strength, point load strength, and Schmidt rebound were determined. …”
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4305
EFFECT OF HARDENING TIME ON DEFORMATION-STRENGTH INDICATORS OF CONCRETE FOR INJECTION WITH A TWO-STAGE EXPANSION DURING HARDENING IN WATER
Published 2018-03-01“…Conclusion During prolonged hardening in an aqueous medium, self-stresses are reduced up to 25% with the exception of expansion at the first stage and up to 20% with an increase in volume up to 5% at the first stage. The increase in compressive strength is up to 28% relative to the 28-day period.…”
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4306
Study on the Permeability of Weakly Cemented Sandstones
Published 2019-01-01“…Aiming at investigating the seepage characteristics of the fracture surfaces in different rock strata, uniaxial compressive test and permeability test were performed on single-fracture homogenous and heterogeneous rocks. …”
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4307
Preparing controlled low strength materials with cement-treated construction waste clay improved by sodium hexametaphosphate.
Published 2025-01-01“…Flow tests, unconfined compressive strength (UCS) tests, hydraulic conductivity tests and scanning electron microscope (SEM) analyses were performed on cement-treated construction waste clay with different additive content (e.g. sodium hexametaphosphate (SHMP), water glass, and phosphogypsum (PG)). …”
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4308
Investigating the Influence of Raw and Treated Coconut Fibre Obtained from Agricultural Residue on the Strength and Durability Characteristics of High-Strength Concrete
Published 2024-01-01“…The CFs underwent physical treatment by boiling and chemical treatment using a 1% sodium hydroxide (NaOH) solution. Different fibre contents were examined, and analyses including scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS) were carried out on untreated and treated fibres. …”
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4309
Mechanical characterization of carbon/Kevlar hybrid woven 3D composites
Published 2025-07-01“…It reflects the ability of the CCC combination under bending to compress or stretch less when experiencing deformation (strain), while the maximum values (stress) indicate that the CCC can support a larger load. …”
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4310
Boost Cyclone Intensity Estimation via Processing Motion Information and Embedding Rotation Invariance
Published 2025-01-01“…One branch directly processes motion information from the pixel space, while the other branch first computes motion matrices between different time steps to map the features from the pixel space to the motion space, then cascades multiple downsampling modules for encoding and compressing the information. …”
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4311
Long-term and microstructural studies of soft clay stabilization using municipal solid waste and Nano-MgO as an Eco-Friendly Method
Published 2023-07-01“…The optimum percentage of MSW addition (15%) to the Clay at the curing age of 28 days increased the unconfined compressive strength (UCS) and California bearing ratio (CBR) by 1.28 and 3.34 times, respectively. …”
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4312
Hybrid extreme learning machine for real-time rate of penetration prediction
Published 2025-08-01“…The models were trained and validated using a dataset of 13,262 data points from an Algerian field, with different statistical metrics used for evaluation. …”
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4313
Effect of Calcined Marble Powder and Magnetized Water on the Performance of Cement-Based Composites
Published 2024-12-01“…Additionally, the influence of two different mixing waters—tap water (TW) and magnetized water (MW)—was assessed to determine their combined effects on the composite performance. …”
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4314
Mechanical properties of alkali activated geopolymer cement mortar for non vibratory compacted trench backfilling
Published 2025-04-01“…In addition, according to the strength comparison of the different groups, metakaolin had a better effect on the mechanical properties of the material than fly ash. …”
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4315
The Prediction Model of Super Large Subsidence in High Water Table Coal Mining Areas Covered with Thick Unconsolidated Layer
Published 2021-01-01“…To solve this problem, by using the numerical simulation software Fast Lagrangian analysis of continua (Flac), we study the changing rules of subsidence with different strata lithology and unconsolidated layer thickness and reveal the formation mechanism of this law. …”
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4316
Fabrication of glipizide loaded polymeric microparticles; in-vitro and in-vivo evaluation.
Published 2025-01-01“…The microparticles were fabricated through a simple solvent evaporation method, employing various drug-to-polymer ratios to formulate different controlled-release batches labeled as F1 to F5. …”
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4317
Word decoding of protein amino Acid sequences with availability analysis: a linguistic approach.
Published 2012-01-01“…The amino acid composition of high-availability sites within motifs is different from that of entire motifs and all protein sequences, suggesting the possible functional importance of specific SCSs and their compositional amino acids within motifs. …”
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4318
Concrete Production and Curing with Recycled Wastewater: A Review on the Current State of Knowledge and Practice
Published 2022-01-01“…The observations made are based on the assessment of wastewater quality parameters and their impacts on some selected concrete properties such as initial setting time and compressive strength. Due to scanty research on the impacts of varying concentrations of different ingredients in any questionable water on selected properties of reinforced concrete and its durability, thus, further research is recommended.…”
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4319
Study on the influence of mining sequence and depth on slope stability of end slope in open-pit mines
Published 2024-12-01“…We put forward the calculation formula of coal pillar stress under sequential mining and jumping mining, and use FLAC3D software to calculate and analyze the coal pillar stability under the two methods, and study the slope stability under different mining tunnel depths in the limit state of mining. …”
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4320
Lightweight Cement Mortars with Granulated Foam Glass and Waste Perlite Addition
Published 2019-01-01“…The aggregate composition of GFG was combined from different monofractions in the range 0–2 mm so that it filled the mortar volume to the maximum. …”
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