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Showing 1 to 20 of 47 for “"curing time"”.
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Impact of curing time on warm mix asphalt short-term performance
… A performance evaluation of WMA over various ‘curing’ periods would determine the evolution of the complex modulus over time. This allows to identify the optimum time for opening WMA paved surfaces to traffic. The effect of curing time on the short-term performance of the warm stone matrix …
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Development of Predictive Modeling for the Reduction of Escherichia Coli During the Curing Time of American Type Cheese
… the decline of viable Escherichia coli in the curing of American Type cheese. Pasteurized whole milk was inoculated with 100 to 1000 E. coli biotype I /ml and was used to manufacture Cheddar and Colby-like cheeses. Multiple regression design was employed to determine the effects of low to high …
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Impact of Curing Time and Curing Stress On the Mechanical Behavior of Cement-Improved and Cement-Fiber-Improved Soft Soil
… special attention being paid to the effects of curing time and vertical curing stress. It is shown that the introduction of cement into soft soils results in decreased compressibility and increased unconfined compressive strength when compared to unimproved soils. Also, the unconfined …
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Putting Place Back Into Displacement: Reevaluating Diaspora In the Contemporary Literature of Migration
… special attention being paid to the effects of curing time and vertical curing stress. It is shown that the introduction of cement into soft soils results in decreased compressibility and increased unconfined compressive strength when compared to unimproved soils. Also, the unconfined …
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Immediate release ginseng chewable tablets and sustained release amino acid pellets based on dry powder coating technology platform
… well as coating materials, coating temperature, curing time and coating level, were optimized. For the sustained release amino acid pellets, coating level and curing time on, as well as the composition of ethyl cellulose (EC), were optimized. In summary, those laboratory studies provided new …
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Freeze-thaw durability of high strength silica fume concrete
… C666 , Procedure A to determine the effect of curing time on the freeze-thaw durability of high strength concrete. Results show that non air-entrained high strength concrete with water cementitious ratio of less than 0.30, regardless of the length of curing time, is frost resistant. …
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Photo-Curing Behavior and Thermal Properties of Silicone Semi Interpenetrating Polymer Network (Semi-IPN) Organogels
… of some of the manufacturing parameters such as curing time and thermal processing on thermal, mechanical, viscoelastic and adhesive/cohesive fracture properties of silicone semi-interpenetrating polymer network organogels. Curing time may affect the extent of reaction and the crosslink density …
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Characterization and deterioration detection of portland cement concrete using ultrasonic waves
… freeze/thaw (FT) damage included the effect of curing time, w/c ratio, and aggregate type. The effect of curing time was investigated by exposing PCC specimens cured for 3 and 7 days to FT. Two w/c ratios were considered, 0.45 and 0.55. The effect of aggregate on detecting FT damage was …
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Influences of Curing Conditions and Organic Matter on Characteristics of Cement-treated Soil for the Wet Method of Deep Mixing
… in-situ soil and binder, mixing conditions, and curing conditions.The study presented herein aims to investigate the influences of curing time, curing temperature, mix design proportion, organic matter in the soil, and curing stress on the strength of cement-treated soil. Fabricated and natural …
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The performance of polyurethane grout to stabilise hemic peat
… is a strong lightweight material with very short curing time. The Parit Nipah hemic peat has high natural moisture content (> 500%) with high initial void ratio (6.72-10.11) and compression index, cc between 3.17 to 4.57. Optimum mixing ratio for PU of 1:2 (polyol:isocyanate) was established to be …
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Development and Testing of a Capacitor Probe to Detect Deterioration in Portland Cement Concrete
… were averaged. The dielectric properties over curing time were measured for all specimens, using the capacitor probe and the parallel-plate capacitor. The capacitor probe showed a decrease in dielectric constant with increasing curing time and/or air content. In addition to measuring dielectric …
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Early Age Assessment of Cement Treated Materials
… must be allowed to cure for a period of time before the pavement can be opened to traffic. The purpose of this research was to evaluate the utility of the soil stiffness gauge (SSG), heavy Clegg impact soil tester (CIST), portable falling-weight deflectometer (PFWD), dynamic cone …
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Characterization and deterioration detection of Portland cement concrete using electromagnetic waves over a wideband of frequency
… plate capacitor. This included the effect of curing time, water to cement (w/c) ratio, aggregate type, cement type, and air entrainment. The effect of curing time on the complex dielectric constant of PCC was quantitatively determined. However, the success in detecting changes in the PCC basic …
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Active Rigidization of Carbon Fiber Reinforced Composites via Internal Resistive Heating
… inherent lack of control, which can lead to long curing times and weak spots due to uneven curing. This work presents internal resistive heating as an alternative approach for inducing matrix consolidation and curing of thermoset-coated carbon fiber tows. The ability to dictate this physical …
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Cement-based solidification of ferro-alloy solid wastes
… namely water to solids ratio, cement content and curing time. Effective setting of the cement-waste product was found to require a preliminary wash of the untreated dust to remove much of this soluble chromium and other salts. It was identified furthermore that the solids required higher amounts …
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Estabilização de um solo fino laterítico pelo ácido fosfórico
… of solution used in compacting the soil; III- Curing time; IV- Compaction energy; V- Curing temperature. A few other secondary studies were also performed: a) tensile strength from diameter compression tests; b) unconfined compression tests of soil treated with Portland cement, to compare with …
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Development of a New High Performance Cold Mix Asphalt
… of a CBEM with high early strength and minimal curing time is of increasing interest to researchers in the asphalt industry. The aim of this research work was to develop a new, high performance and environmentally friendly, surface course, cold bitumen emulsion mixture for heavily trafficked …
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Development of a testing approach for tack coat application rate at pavement layer interfaces
… study also examined the influences of tack coat curing time, temperature, HMA type, and surface texture on the performance of tack coats. The study considered four tack coat materials: SS-1hp, high float emulsion (HFE), SS-1vh (very hard non track emulsion), and straight asphalt (PG 64-22). The …
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Estabilização de areia com cinza volante e cal; efeito do cimento como aditivo e de brita na mistura
… specimens, height 20 cm, diameter 10 cm. Curing ages: 7, 14 and 28 days. Texting: axial compression and diammetrical (split tensile) compression. Unconfined compressive strengths varied from 2,1 to 94 kgf/cm2 and tensile strength from 2,2 to 10,4 kgf/cm2, depending on mix composition, …
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