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Types of Cement II

Types of Cement II

Portland blast-furnace cement is made by blending Portland cement clinker with granulated blast-furnace slag, which accounts for 25 to 65 percent of the cement's weight. Despite its similarities to ordinary Portland (Type I) cement in terms of fineness and setting times, its early strength is lower, though it achieves comparable strength later on. It's particularly suited for mass concrete structures and marine environments due to its lower heat of hydration and superior sulfate resistance.

Types of Cement I

Types of Cement I

Portland cement comes in several types, each with distinct properties and applications based on their chemical composition and hydration characteristics:
Type I (Ordinary Portland Cement) is widely used for general construction where special properties are not required. It has moderate sulfate resistance and heat of hydration.
Type II (Modified Cement) offers moderate resistance to sulfate attack and a lower rate of heat development compared to Type I. It is suitable for structures in...

Concrete

Concrete

Concrete is a vital construction material extensively used worldwide, primarily valued for its strength, durability, and versatility, which it provides for various structural designs. Concrete generally comprises ingredients like Portland cement, coarse gravel, fine sand, and water. Concrete can be mixed by simple hand methods or industrially at computer-controlled plants. The mixture consists of aggregates and a paste made from water and Portland cement. This paste coats the aggregates and,...

Hydration of Cement

Hydration of Cement

Hydration of cement is a chemical reaction between cement particles and water. This process occurs primarily through two mechanisms: through-solution and topochemical. In the through-solution process, anhydrous compounds dissolve into their constituents, hydrates form in the solution, and then precipitate from the supersaturated solution. The topochemical process involves solid-state reactions at the cement particle surface. The through-solution process dominates the topochemical process at the...

Setting Time of Cement

Setting Time of Cement

The setting time of cement refers to the process of cement paste transitioning from a plastic state to a solid state. This process is crucial in construction as it dictates the timeframe for concrete placement, compaction, and finishing. The onset of this solidification is termed the initial set, indicating when the paste becomes unworkable. The final set is when the paste has solidified completely, and further handling or manipulation can no longer affect its shape. The cement strength is...

Portland Cement

Portland Cement

Portland cement is the essential binding ingredient in concrete, made from finely ground materials including lime, iron, silica, and alumina. Lime is derived primarily from limestone, marble, marl, seashells, and clays, which also supply iron and alumina, while silica is sourced from sand, chalk, and bauxite. Contemporary manufacturing of Portland cement is a significant source of carbon dioxide emissions, prompting research into reducing its content in concrete through alternative...

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Related Experiment Video

Updated: Jun 1, 2026

Quasistatic Mechanical Testing for Computer-Aided Design and Manufacturing Occlusal Veneers Cemented to Milled Dentin Analog Material

Quasistatic Mechanical Testing for Computer-Aided Design and Manufacturing Occlusal Veneers Cemented to Milled Dentin Analog Material

Published on: December 20, 2024

Conventional and contemporary luting cements: an overview.

Komal Ladha, Mahesh Verma

Journal of Indian Prosthodontic Society

|June 2, 2011

Summary

Selecting the right luting agent is crucial for the long-term success of dental restorations. This review covers conventional and modern agents to guide clinicians in choosing the best option for specific cases.

Area of Science:

Dentistry
Prosthodontics
Materials Science

Background:

The longevity of fixed prosthodontic restorations depends on multiple factors.
Proper selection of a luting agent is a critical determinant of clinical success.
The wide array of available luting agents reflects the inability of any single agent to meet all clinical demands.

Purpose of the Study:

To review conventional and contemporary luting agents used in fixed prosthodontics.
To discuss the properties and clinical implications of various luting agents.
To assist clinicians in selecting appropriate luting agents for diverse clinical scenarios.

Main Methods:

Literature review of conventional and adhesive resin cements.
Analysis of luting agent properties, including physical, chemical, and mechanical characteristics.

Keywords:

Advantages Chief concerns Clinical recommendations Luting cements Properties Shortcomings

Related Experiment Videos

Last Updated: Jun 1, 2026

Quasistatic Mechanical Testing for Computer-Aided Design and Manufacturing Occlusal Veneers Cemented to Milled Dentin Analog Material

Quasistatic Mechanical Testing for Computer-Aided Design and Manufacturing Occlusal Veneers Cemented to Milled Dentin Analog Material

Published on: December 20, 2024

Evaluation of clinical performance and implications associated with different luting agents.

Main Results:

Conventional luting agents offer ease of use but may have limitations in bond strength and esthetics.
Adhesive resin cements provide enhanced bonding and are crucial for all-ceramic restorations and resin-retained prostheses.
Each luting agent type presents unique advantages and disadvantages influencing clinical outcomes.

Conclusions:

The choice of luting agent significantly impacts the success of fixed prosthodontic restorations.
Adhesive resin systems have revolutionized prosthodontic practice, enabling advanced restorative techniques.
Clinicians must carefully consider material properties and clinical situations to optimize luting agent selection.