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Fineness of Cement

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The fineness of cement directly influences the rate of hydration, as the hydration begins at the surface of the cement particles. In addition to hydration, the fineness of cement is vital for various properties of concrete including workability, gypsum requirement, and long-term behavior. The fineness of cement is represented in terms of the specific surface of cement which is typically measured in square meters per kilogram, with several methods available for this determination.
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Moisture Content and Bulking of Aggregate01:10

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The moisture content of aggregates is a crucial factor in construction, particularly in concrete mixing, as it influences the total water required in the mix. Moisture content represents the water coated on the exterior surface of the aggregate existing in a saturated and surface-dry condition. The total water content of a moist aggregate is the sum of its moisture content and water absorption.
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The workability of concrete is a critical characteristic that influences the ease of mixing, handling, and finishing the concrete. It is affected by several factors including water content, aggregate properties, and admixtures like air entrainment. Water plays a fundamental role as it lubricates the concrete mix, facilitating easier movement and placement. However, the water requirement varies depending on the texture and shape of aggregates. Finer particles and angular, rough-textured...
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Optimization Problems

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Optimization problems often involve identifying maximum or minimum values under specific constraints. A well-known example is determining the longest horizontal pipe that can be moved around a right-angled corner, where a 3-meter-wide hallway meets a 2-meter-wide hallway. This scenario, common in architectural design and industrial transport, can be understood conceptually through geometric and trigonometric reasoning.To visualize the problem, consider the pipe as a straight line that touches...
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The porosity of concrete is a measure of the void spaces within its structure. These spaces impact its strength and durability significantly. When water and cement interact, a chemical reaction called hydration creates a semi-solid paste. This paste includes combined water, making up approximately 23% of the cement's dry mass, and gel water, which fills minuscule voids known as gel pores, accounting for about 28% of the cement gel volume.
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Optimization of durum wheat bread enriched with bran.

Maria A Saccotelli1, Amalia Conte1, Krystel R Burrafato2

  • 1Department of Agricultural Sciences, Food and Environment University of Foggia Foggia Italy.

Food Science & Nutrition
|June 3, 2017
PubMed
Summary

This study optimized functional durum wheat bread with high bran content. By adjusting organogel concentration and bran particle size, acceptable sensory quality was achieved with increased nutritional value.

Keywords:
Durum wheat breadbranorganogeltextural and sensorial properties

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Area of Science:

  • Food Science
  • Nutritional Science
  • Bakery Technology

Background:

  • Increasing bread's nutritional value often impacts sensory attributes.
  • Durum wheat bread can be enhanced with bran, but high concentrations affect consumer acceptance.

Purpose of the Study:

  • To develop a functional durum wheat bread enriched with a high concentration of bran.
  • To optimize organogel concentration and bran particle size to balance nutritional and sensory quality.

Main Methods:

  • Formulation of durum wheat bread with up to 15% bran.
  • Utilized organogel concentration and bran particle size as key process variables.
  • Sensory evaluation of bread acceptability at different bran concentrations and processing conditions.

Main Results:

  • Increasing bran concentration to 15% enhanced nutritional content but decreased sensory quality.
  • Optimized organogel concentration and bran particle size significantly improved bread's sensory acceptance.
  • Achieved high bran enrichment without compromising overall acceptability.

Conclusions:

  • It is feasible to produce highly nutritious durum wheat bread with significant bran enrichment.
  • Strategic use of organogel and controlled bran particle size are crucial for maintaining consumer acceptability.