GCP expert will present study on manufactured sand at Thai conference, centered on innovative concrete solutions for the future
More and more, GCP Applied Technologies' scientists and technical experts have observed the use of manufactured sand over natural sand, as a fine aggregate in ready-mixed concrete.
THE PRIMARY REASON: Environmental concerns have made what remains of available natural sand resources an economically unviable option for the concrete producer.
It's important to note, however, that crushed stone fines and quarry dust alternatives are more abundant, but lack quality. GCP has, therefore, published a paper entitled, "Issues with, and Admixture Solutions, for the Use of Manufactured Sand in Concrete," to study the introduction of GCP concrete admixtures into mixes to achieve a higher quality concrete with manufactured sand.
GCP tech expert Dr. Jiabiao Jiang will present the study at the Thai Concrete Association conference, in Bangkok, Feb. 15-17, 2017. The conference's theme is "Innovative Concrete for the Future of Construction Material."
An excerpt from the paper reads: "The key idea is to develop admixtures with enhanced water reduction capacity to compensate for the increase in water demand and rheology modification to improve the pumpability and finishability of concrete mixes with manufactured sand so that they work just as well as concrete with natural sand."
To read the entire study, you can download the paper below.
EMAIL FOR FULL STUDY
Don't miss GCP Applied Technologies'
Ice & Water Shield® self-adhered roofing underlayment and latest residential building envelope innovation,
Vycor® enV-S™ self-adhered weather resistive barrier, on the renovation of the
This Old House® Arts & Crafts project airing two episodes, beginning Thursday, Jan. 5, 2017 (check local listings):
"Arts and Crafts from Top to Bottom" (part 9 of 16)
original air date 1/5/2017
"Underground Energy" (part 11 of 16)
original air date 1/19/2017
"We are proud to work with the This Old House crew on another unique home project," said Sonya Santos, Director of Marketing for GCP’s Residential Building Materials business. "It is one of our greatest honors to have our
Ice & Water Shield®, which has been trusted for nearly 40 years, used by such a highly trusted brand and team of respected home renovation experts."
This Old House® episodes feature the renovation of an Arts & Crafts home in Arlington, Massachusetts. Original
Ice & Water Shield®, was used on the roof of the Arlington home to protect it from extreme weather such as wind-driven rain and ice dams. The underlayment seals around the fasteners used to attach the shingles, which helps prevent water build up from leaking into the house.
Ice & Water Shield® also sticks to the roof deck so that water may not travel under the underlayment and enter the house via a vulnerable roof deck joint. The episode that includes
Ice & Water Shield® is titled “To Paint or Not to Paint, number 1507/3607 and airs on PBS beginning November 10, 2016.
"The This Old House crew also selected our advanced weather barrier,
Vycor® enV-S™, an advanced alternative to house wrap. This weather resistive barrier represents the latest in residential building science to create an air-tight, yet breathable home, and achieve the highest product performance available," Santos said.
The well-respected Oak Ridge National Lab tested and evaluated the annual savings potential of
Vycor® enV-S™ membrane compared to traditional house wrap.
Vycor® enV-S™ weather resistive barrier boasts an air leakage rate
seven times lower than the leading house wrap brand. The Oak Ridge Lab also found that using this new and advanced membrane can provide significant energy savings for homeowners in all regions of the United States.
The use of PVC-free closure sealants during the champagne maturation process began more than 20 years ago, with Darex®.
PVC-free closure sealants replace cork sealants for less organoleptic variability and constant gas exchange. This avoids the irregular exchange that can occur with the cork.
During champagne maturation, Daraform® PVC-free crown liners are applied to the temporary seal.
Darex® plays a key role in champagne maturation
After crown capping, champagne bottles embark on a long period of maturation on lees—residual sediment that settles in the wine bottle during maturation. Bottles are stored at a downward angle in a cellar kept at a constant temperature of 12°C (54°F).
The crowns are then removed during the disgorgement phase. This is a critical point in the life of champagne, that takes anywhere from many months to years of peaceful maturation on lees.
The purpose of disgorgement is to eliminate the deposit that has collected in the neck of the bottle, while maturing. During disgorgement, the bottleneck is plunged into a refrigerating solution at -27°C (-16°F). The sediment (in the form of a frozen plug) ejects under pressure when the bottle is opened, with minimum loss of wine and pressure.
Finally, the cork is forced into the neck of the bottle, covered with a protective metal capsule, then held in place with a ‘muselet,' or wire cage, to form an airtight seal.
From there, the champagne is ready to usher in a new year, celebrate a wedding or other momentus occasion, or christen a ship ready to berth into the mighty ocean. All of this was possible thanks, in part, to Darex®'s PVC-free closure sealant Daraform®.
Sistiaga® coatings provide application robustness even with older equipment
GCP Applied Technologies reinforces its ongoing commitment to the rigid packaging marketplace with the addition of the complete
SISTIAGA® can coatings portfolio of coatings for aluminum containers and collapsible tubes.
Robustness and Consistency
SISTIAGA® can coatings offer extreme robustness and application versatility. Whether applied in aluminum aerosol cans, bottle-cans or collapsible tubes,
SISTIAGA® can coatings ensure the best balance between chemical and mechanical resistance, as well as smooth and consistent application performance.
SISTIAGA® can coatings provide application consistency. Their formulation robustness can be put to the test in both state-of-the-art machines and older equipment, without sacrificing performance. This independence from equipment variables is one of
SISTIAGA® can coatings' greatest assets.
SISTIAGA® preserves container integrity
Internal coatings for aerosols and bottle-cans
Our solvent-based internal coatings function to preserve the integrity of aluminum containers by protecting the aluminum from corrosive impact. Internal coatings improve the shelf life of containers and remain neutral, from an organoleptic perspective.
Irrespective of resin technology, our internal coatings for aerosols and bottle-cans feature excellent sprayability and good film porosity.
SISTIAGA® internal coatings cover a full spectrum of applications, ranging from beer, carbonated soft drinks, energy drinks and water, to high pH health and beauty products.
Responding to the packaging needs of household and cosmetic products containing chemically aggressive solvents, our polyamide imide-based product line offers maximum resistance to chemical agents. They're suitable for use with DME propellants.
Basecoats for aerosols and bottle-cans
SISTIAGA® can coating products allow customers to take full advantage of aluminum containers for high-impact graphics and colors. Our highly decorative and versatile basecoats provide a fundamental foundation to support inks and varnishes.
Whether white or clear,
SISTIAGA® solvent-based basecoats show extreme latitude as primers for inks from different suppliers. All formulations have been carefully designed to achieve perfect balance between elasticity, mechanical strength and process resistance.
See our SISTIAGA® products up close at the
Aerosol & Dispensing Forum 2017, in Paris.
GCP Applied Technologies may appear brand new, but the construction materials and packaging solutions producer hails from decades of innovation.
Since the early 20th century, the GCP lineage has filed nearly 900 patents. And here's the first in concrete
Download the patent in PDF
Dewey & Almy applied for a patent in new
admixture technology, based on a Lignin derivative. The compound was an effective dispersion agent to produce
concrete with lower cost or better strength.
The major cost in producing
cement. And water is needed to mix with the
cement so that it becomes pliable, more plastic, making it easy to form, manipulate and to catalyze
cement hydration. The more water, the more workable the
cement becomes, as well as more hydrated.
The tradeoff, however, is that excess water weakens the
concrete. Yet, producers needed to add excess water to achieve the desired
cement workability, sacrificing strength or cost.
The Lignin derivate concrete
admixture solved for this. The water-reducing agent dispersed
cement particles efficiently to grant the desired workability, without having to add excess water.
Due to Dewey & Almy's innovative
admixture, we have a
concrete produced with workable
cement, that maintains strength or lowers cost of production.
Grace Construction & Packaging (the future GCP) would acquire Dewey & Almy in 1954.
The ease of applying
Silcor® 900HA liquid waterproofing will save you time, without sacrificing the integrity of the structure. It's fast-curing and foot-trafficable within 2 hours. The cold-applied formula requires no kettles, flames nor propane, and no additional protection against mechanical damage, in normal conditions.
The elastometric design of the
Silcor® accommodates movements and bridges concrete shrinkage cracks, for continuous waterproofing integrity. Easy detailing. No reinforcement needed. Virtually odorless.
Hand-applied, at wide temperature and humidity ranges, for maximum coverage per day.
Fast cure property speeds up construction cycle.
Reduced failure risks
Fully-bonded waterproofing reduces risks of leakage.
Metallic drums and pails are often used as packaging for transporting industrial goods and food products. DAREX® drum and pail compounds are used to seal the seam channels of double- or triple-seam steel drums and pails. Many drums and pails are also constructed with an open-top or lid, not seamed, but crimped onto the package. DAREX® Cover Compounds are used to form a seal with the crimped open-top or closing-ring of metal, plastic drum and pail packages.
The Importance of the Sealing Compounds
The hermetic seal performs the following functions:
- Keeps micro-organisms out of the package, probably its most important function;
- Prevents seepage of the pack from the drum or pail;
- Prevents leakage of liquids or vapors into or out of the drums or pails;
- Maintains the desired vacuum or pressure inside
DAREX® sealing compounds meet the needs of the pack
Sealing compounds of high quality must be used after consideration of the requirements of the pack. The proper type, amount and placement of the compounds are required to obtain maximum sealing efficiency, and resistance to leakage caused by abuse of the body and the end in the double or triple seam area.
Optimal Sealants for Different Sealing Technologies
Double or triple seam applications
DAREX® Drum and Pail Compounds are latex dispersions delivered in a liquid form for application. They are typically dried or cured prior to seaming. In some cases, the product may also be applied wet during the seaming operation. The gasket must be properly compressed during the seaming operation. The compressive force results in controlled movement of the gasket, filling the voids resulting from double or triple seam construction. Compound placement in the seam provides robustness and abuse resistance during container transportation.
DAREX® Cover Compounds utilize two different technologies: Latex dispersion for water-based compounds or PVC dispersions for plastisol compounds; both of them are used for open-top metal covers. DAREX® water-based cover compounds utilize a two component system to create a "puffed" gasket with cell structure to fill large channels in some covers and lids. DAREX® Plastisol Cover Compounds utilize a single component, PVC-resin-based technology. Both water-based and PVC cover compound technologies rely upon proper compression of the gasket during the crimping operation to fill the voids in the cover assembly. DAREX® Cover Compounds are delivered in a liquid form for application and in most segments are cured prior to crimping.
DAREX® products are specially formulated to have good chemical resistance to a wide variety of aggressive packs. The excellent performance of DAREX® compounds in contact with different oils or solvents is largely due to the tendency of the compounds to swell slightly in the presence of these packs, providing additional assurance that any leakage path is filled. DAREX® products do not become brittle when dried. They retain their rubbery, elastic characteristic providing abuse resistance and sealing integrity to the package during handling and transportation of the drum or pail.
In order to get the optimum sealing properties, several considerations have to be taken. The first criteria is to match the selection of the compound with the product that is being packed. Then proper storage and compound conditioning prior to application are important. Compound application (placement, volume, film weight and appearance) and correct drying and curing with the right compression of the gasket will provide the best hermetic seal.
GCP Applied Technologies supplies a complete range of thermoplastic-elastomer and PVC-free
closure sealants to meet the sealing requirements of the closure industry. PVC-free
closure sealants provide a sealing gasket for crowns, twist-off crowns, roll-on aluminum closures or plastic caps. They also seal bottles and jars for beverages, like beer, champagne, carbonated soft drinks, fruit juice, mineral water, etc.
For humans, oxygen is life, but it's death for beverages
Beer. Juice. Tea. Sports drinks. Once they’re bottled, they’re ready to be delivered fresh to the consumer, right?
Oxygen goes right to work, destroying the freshness and taste of the beverage, from the minute the cap is sealed. Oxygen can get trapped in a bottle’s headspace, dissolve into the beverage itself, or enter through the packaging. Even low levels of oxidation can result in stale beer, sour juice or spoiled tea. All of this leads to returned bottles, unhappy customers and a negative perception of the beverage product.
Freshness vs. oxidation: Make sure freshness wins
It’s a fact. Oxidation will occur unless you take steps to prevent it. Barrier bottles and sealants alone won’t work. The oxygen-scavenging
Celox® closure sealant keeps oxygen-sensitive beverages fresh, preserves their taste, reduces returns and protects the beverage brand.
GCP Applied Technologies Inc. announced today that it has completed the acquisition of Halex Corporation for $47 million. Halex is a supplier of flooring products with annual net sales of approximately $45 million, and is best recognized for its proprietary VersaShield® rolled moisture barrier flooring membrane.
VersaShield protects flooring from moisture and alkalinity-related damage, and its membrane is highly regarded in the industry for its strong performance, and ease and speed of installation. Halex is also known for its ORCON® seam tapes and other accessory flooring installation products.
"Our plan to build on the success of the VersaShield product line fits well with our broader goal of creating new product categories that change the way the industry approaches building protection solutions," said GCP President and CEO, Gregory E. Poling. "Providing customers with differentiated products for interior environments opens new growth opportunities in the building envelope."
"Halex is a great fit for GCP because it offers high-performance products that allow us to fully leverage our existing sales and distribution channels. The company also shares our emphasis on providing a high-touch customer service model, coupled with technical service capabilities required to support specifiers and owners," said Zain Mahmood, President of GCP’s Specialty Building Materials business.
"GCP is known for our exterior building products, like Preprufe® membranes, Ice & Water Shield® underlayments, and, more recently, Silcor® liquid waterproofing. Adding an interior moisture barrier offering is a natural extension to our product range," said Mahmood. He went on to add that "our products are used for specialty applications in both new construction and renovation projects, including commercial, residential, and infrastructure. Halex’s product application focus will allow us to increase our penetration into the repair and renovation segments."
Halex Corporation has three North American sites located in Ontario, California, Calhoun, Georgia and Bensalem, Pennsylvania.