Expansion material Product List and Ranking from 4 Manufacturers, Suppliers and Companies

Expansion agent for concrete "Pacific Expand"

The excellence has been demonstrated in a wide range of fields, including the manufacturing of high-strength concrete products!

"Pacific Expand" is an expansive agent that significantly reduces drying shrinkage and cracking in concrete. Due to its high hydration bonding capacity, it achieves a good expansion effect without compromising concrete strength. We offer a lineup including structural types suitable for reducing concrete cracking, as well as early-strength expansive agents. 【Features】 ■ The expansive force works effectively, providing stable results ■ Minimal loss of expansive force during the initial hydration stage ■ Effective expansion can be achieved with a small amount of usage *For more details, please refer to the PDF document or feel free to contact us.

Company：太平洋マテリアル
Price：Other

Concrete admixture
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Expanding agent for concrete products - Pacific Gypsum

Improve the durability of precast concrete and aim for the longevity of precast products!

"Pacific Jipukar" is an expansion agent for concrete products primarily composed of lime. When mixed with this product, precast concrete subjected to steam curing can reduce cracking due to drying shrinkage and introduce chemical prestressing. Additionally, the properties of fresh concrete are similar to those of regular concrete, and by using it in conjunction with an early strength accelerator, the development of early strength can be enhanced. [Features] ■ Capable of suppressing cracks caused by drying shrinkage and introducing chemical prestressing ■ The properties of fresh concrete are similar to those of regular concrete ■ Enhances the development of early strength when used in combination with an early strength accelerator *For more details, please refer to the PDF materials or feel free to contact us.

Company：太平洋マテリアル
Price：Other

Concrete admixture

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High-performance expansion material "Super Sacs Type S"

The ettringite-lime composite system has an extremely stable expansion performance as an expansive cement admixture.

The high-performance expansion material "Super Sacs Type S" provides effective expansion with a small amount of usage, significantly reducing cracking and minimizing prestress loss. For more details, please download the catalog.

Company：住友大阪セメント
Price：Other

Cement mortar coating
plaster

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Low thermal expansion material "Hino GD Invar" with excellent casting defect suppression and machinability.

Stable supply available from one unit to large lots! We have a track record of delivery in various industrial machinery such as semiconductor manufacturing equipment, machine tools, precision measuring instruments, and vacuum pumps.

The "Hino GD Invar" is a low thermal expansion material that achieves unprecedented stability in low thermal expansion, castability, and machinability through the optimization of alloy components and heat treatment. It has a proven track record in various industrial machines, including semiconductor manufacturing equipment, machine tools, precision measuring instruments, and vacuum pumps. 【Features】 - It has a low thermal expansion coefficient α = 1.0 to 3.5 ppm/K (average 20 to 50°C). - Castability/Machinability: By optimizing the alloy structure, it suppresses casting defects and excels in machinability compared to nickel-based materials. ⇒ It is ideal for parts with complex shapes or those prone to casting defects, as well as for parts that require machining. - The automatic molding line for sand molds enables the production of a wide variety of small quantities and stable supply. ⇒ With an automatic pattern change system, we have an automated and efficient sand mold automatic molding line that can flexibly respond to fluctuations in production volume, from a minimum of one piece in small lots to large lots. *Development of new materials and customization of materials according to customer requests are possible! Please feel free to contact us.

Company：日之出水道機器産業機械マーケティング
Price：Other

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Expansion agent for low-addition concrete Pacific Hyper Expand

Crack Prevention: It suppresses cracks in concrete and improves durability!

"Pacific Hyper Expand" is a low-additive expansion agent for concrete that significantly reduces concrete cracking. Concrete using this product expands during the early curing stage (age 1-7 days) compared to ordinary concrete, with an expansion rate of 150-250×10^-6, thereby reducing long-term shrinkage and suppressing cracking. We offer a lineup of structural types effective in suppressing cracking due to volume changes in general concrete structures, including those designed to mitigate hydration heat. 【Features】 ■ Compliant with JIS A 6202 "Expansion Agents for Concrete" (structural type) ■ Significantly reduces concrete cracking ■ Effective expansion achieved with a small amount of use ■ Slump and air content changes over time are comparable to ordinary concrete ■ Applicable to a wide variety of concrete types *For more details, please refer to the PDF document or feel free to contact us.

Company：太平洋マテリアル
Price：Other

Concrete admixture

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Early strength expanding material "Pacific N-EX (for products)"

Promotes initial hydration of cement and heat generation during hydration! A concrete admixture that allows for early demolding.

"Pacific N-EX (for products)" is an inorganic early-strength expansion material primarily composed of coal-based special clinker. In the manufacturing of concrete products, it allows for early demolding and the suppression of shrinkage cracking by using no steam curing or simple steam curing. It significantly contributes to energy savings and helps reduce the environmental impact on the planet. [Features] - Pre-curing and steam curing times can be significantly shortened, enabling early demolding. - Cost reduction and shortened delivery times can be achieved through improved formwork turnover rates. - Suppression of shrinkage cracking and the introduction of chemical prestressing are possible. - There is no slump drop observed in conventional early-strength admixtures. - Durability equal to or greater than that of normal concrete can be obtained. *For more details, please refer to the PDF document or feel free to contact us.

Company：太平洋マテリアル
Price：Other

Concrete admixture
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[Information] Measures Against Concrete Cracking - 4 Selections -

We will introduce proposals for suppressing cracks caused by drying shrinkage and thermal stress!

Cracks in concrete can occur due to drying shrinkage, temperature stress, or when volume shrinkage is restrained for some reason due to sudden changes in temperature or humidity. Additionally, after construction, cracks can develop due to rebar corrosion caused by concrete carbonation or salt damage, as well as structural cracks resulting from earthquakes or ground subsidence. These cracks not only detract from aesthetics but also lead to functional deterioration, water leakage, and ultimately, partial collapse of the structure. The crack prevention measures introduced in this document are proposals aimed at suppressing cracks caused by drying shrinkage and temperature stress, to be applied during the construction of concrete structures. [Contents] ■ Initial crack prevention measures ■ Drying shrinkage crack prevention measures ■ Temperature crack prevention measures ■ Self-shrinkage crack prevention measures *For more details, please refer to the PDF document or feel free to contact us.

Company：太平洋マテリアル
Price：Other

Concrete admixture

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Productivity Improvement Initial Reaction Promoting Expanding Material "Pacific N-EXneo"

Not only does it reduce cracking through condensation promotion, but it also contributes to improving the productivity of slab construction! (NETIS certified)

"Pacific N-EX neo" is a new type of expansive material that incorporates a function to promote the initial reaction of cement without significantly affecting the fresh properties of concrete, based on conventional inorganic early-strength expansive materials primarily composed of lime-based special clinker. By accelerating the setting time and reducing bleeding water, finishing work can begin early, thereby shortening the time required for finishing tasks. The changes in slump and air content over time until pouring are comparable to those of normal concrete. This product has obtained construction material technical performance certification from the Japan Comprehensive Building Testing Institute in 2022. 【Features】 ■ Shortened finishing time ■ Crack suppression ■ Stable strength development ■ Workability NETIS registration number: CB-240030-A *For more details, please download the PDF or feel free to contact us.

Company：太平洋マテリアル
Price：Other

Concrete admixture

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Negative thermal expansion material "Serafit"

A negative thermal expansion material that suppresses thermal expansion by being blended with various materials to create composites!

"Serafit" is a negative thermal expansion material synthesized using complex oxide synthesis technology, specifically in the form of powder made from zirconium tungsten phosphate [Zr2WO4(PO4)2]. It exhibits a thermal expansion coefficient of "-3ppm/℃," indicating a negative slope. In device materials that require high precision, incorporating negative thermal expansion materials into various substrates such as resins and ceramics allows for the suppression of thermal expansion, thereby reducing dimensional changes in materials due to temperature variations. [Features] ■ Can be blended with various substrates without restriction, including resins and glass ■ Confirmed thermal expansion suppression effects based on blending amounts ■ Depending on the type of substrate, thermal expansion suppression effects exceeding the rule of mixtures can be expected *For more details, please refer to the PDF document or feel free to contact us.

Company：日本化学工業
Price：Other

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