Related Experiment Video

Updated: Aug 27, 2025

Shrinkage of Dental Composite in Simulated Cavity Measured with Digital Image Correlation
08:45

Shrinkage of Dental Composite in Simulated Cavity Measured with Digital Image Correlation

Published on: July 21, 2014

13.6K

Polymerization Kinetics, Shrinkage Stress, and Bond Strength to Dentin of Conventional and Self-adhesive Resin

Gabriel Nima, Patricia Makishi, Bruna Marin Fronza

    The Journal of Adhesive Dentistry
    |September 28, 2022
    PubMed
    Abstract

    Keywords:
    degree of conversiongel timemicrotensile bond strength.rate of polymerizationresin cementshrinkage stress

    More Related Videos

    Stereolithographic 3D Printing with Renewable Acrylates08:28

    Stereolithographic 3D Printing with Renewable Acrylates

    Published on: September 12, 2018

    9.6K
    Evaluation of the Curing of Adhesive Systems by Rheological and Thermal Testing09:06

    Evaluation of the Curing of Adhesive Systems by Rheological and Thermal Testing

    Published on: July 3, 2020

    7.4K

    Related Concept Videos

    Drying Shrinkage01:21

    Drying Shrinkage

    When hardened concrete is exposed to air with a relative humidity of less than 100 percent, it begins to lose the free water within its capillaries. As this water evaporates, the water initially adsorbed onto the calcium silicate hydrates migrates towards these now empty spaces and eventually evaporates as well. Over time, as more water leaves, the volume of the concrete decreases, a phenomenon known as drying shrinkage.
    A portion of this drying shrinkage can be reversed; if the concrete is...
    143
    Bonding and Strength of Aggregate01:12

    Bonding and Strength of Aggregate

    The bond between aggregate particles and the cement matrix is significantly influenced by the shape and surface texture of the aggregates. High-strength concretes benefit from a rougher texture, which leads to stronger bonding due to greater adhesion. Angular aggregates with larger surface areas also enhance this bond. The bonding quality, however, is complex to assess as no universally accepted test exists. Good bonding is indicated when a crushed concrete specimen shows some aggregate...
    245
    Strength of Cement01:20

    Strength of Cement

    Strength tests for cement are not performed directly on neat cement paste due to difficulty in obtaining consistent, reliable specimens. Instead, cement is typically tested in the form of cement-sand mortar.
    For compressive strength tests, ASTM C 109-05 standards prescribe a cement-sand mix ratio of 1:2.75 and a water/cement ratio of 0.485 for making 2-inch cubes. These cubes are mixed, cast, and cured in saturated lime water at 23°C until testing. Flexural strength testing, outlined in...
    209
    Mortar Properties01:17

    Mortar Properties

    Mortar properties encompass a range of characteristics crucial for construction and masonry work, including workability, water retention, bond strength, durability, compressive strength, volume change, and appearance. Workability refers to mortar's ability to be easily applied and manipulated without sagging or falling off surfaces, which is important for efficient masonry unit placement and alignment. Water retention is essential to prevent the mortar from losing moisture too quickly to...
    172
    Strength and Heat of Hydration01:29

    Strength and Heat of Hydration

    The hydration of cement is an exothermic reaction in which heat is generated as cement hydrates. This heat of hydration is critical to cement's strength development. The rate at which this heat is generated affects the temperature rise, with a majority of the heat being released early in the hydration process, half within the first three days, and about 75% within the first week.
    The heat of hydration for each cement compound is significant; for instance, tricalcium aluminate (C3A) and...
    307
    Retarders01:19

    Retarders

    Retarders are chemical admixtures designed to extend the setting time, which is especially useful when there is a delay in sequential concrete pours to prevent cold joints and to achieve a cohesive structure. Retarders, when used in appropriate amounts, can also enhance the architectural appearance of exposed aggregate finishes.
    The function of retarders is to delay the setting of concrete, and this effect can be measured using a penetration test. The retardation process involves adding...
    97