MasterLife® AMA 100Antimicrobial Admixture for Concrete

2 MasterLife® AMA 100Antimicrobial admixture for concrete

The Microbial-Induced Corrosion (MIC) process

Anaerobic bacteria present in sewage or wastewater break down sulfate, resulting in the generation of hydrogen sulfide gas (H2S). Thiobacillus family of aerobic bacteria growing in the moist environment above the flow line subsequently convert the hydrogen sulfide gas into sulfuric acid, which attacks the concrete surface and results in deterioration.

Protect concrete from microbial-induced corrosion

Concrete is the most widely used construction material in the world, because it is durable and its constituent materials are readily available worldwide. However, in applications where concrete is exposed to sewage or wastewater, activity by micro-organisms can lead to biodeterioration of concrete through a process known as microbial-induced corrosion (MIC). Consequently, unless protective measures are taken, MIC will cause premature deterioration in concrete pipes, manholes and other structures that carry sewage or wastewater, resulting in increased maintenance and life-cycle costs.

MasterLife AMA 100 is an antimicrobial admixture from BASF that is added into the concrete mixture during batching and, thus, becomes an integral part of the concrete. MasterLife AMA 100 admixture molecularly bonds to cement hydration products and ruptures the cell membrane of aerobic bacteria on contact through an electro-physical mechanism. The absence of aerobic bacteria prevents the conversion of hydrogen sulfide gas into sulfuric acid, thereby disrupting the microbial-induced corrosion process. As a result, premature deterioration of the concrete is averted. The protection provided by MasterLife AMA 100 admixture stays effective even if the concrete surface is abraded.

MasterLife AMA 100 admixture prevents bio-deterioration of concrete structures

3MasterLife® AMA 100Keep concrete clean and protected

Treated ConcreteUntreated Concrete

Results from modified ASTM G 21 test

Protecting concrete surfaces

MasterLife AMA 100 admixture stops the growth and colonization of the microorganisms on concrete surfaces providing protection from biodeterioration. This results in optimal aesthetic appearance, as demonstrated in the treated concrete sample shown on the right.

Preventing biodeterioration

Micro-organisms

Concrete Surface

1

Antimicrobial Admixture (AMA) integrates permanently into the concrete structure. Microorganisms that come into contact with the concrete surface are destroyed.

Concrete Surface

2

The AMA prohibits futher growth of microorganisms. The result: A clean concrete surface free of the growth of mold, algae, fungus, viral and bacterial organisms.

How MasterLife AMA 100 antimicrobial admixture works

MasterLife AMA 100 admixture chemistry has been proven to mitigate microbial-induced corrosion

Benefits

�� Protects concrete from microbial-induced corrosion�� Bacteria immunity cannot be developed from repeated contact with concrete containing MasterLife AMA 100 admixture �� Protection stays effective even if the concrete surface is abraded

Applications

�� Cast-in-place concrete used in sewage and drainage systems�� Precast concrete tanks, pipes, manholes, and similar structures/elements used in sewage and drainage systems�� Shotcrete (for pipelines and tunnels)�� Rehabilitation of deteriorated concrete elements in sewage and drainage systems

Features

�� Electro-physical destruction mechanism�� Integral part of concrete matrix�� Broad-spectrum protection�� Ruptures bacteria cell membrane on contact and prevents colonization and growth of acid-producing bacteria on concrete surfaces�� Protects against several microorganisms, including, gram positive bacteria, gram negative bacteria, fungi, algae, yeast, and mildew

Contact your local BASF representative to discuss applications other than those listed above.

LIMITED WARRANTY NOTICEWe warrant our products to be of good quality and will replace or, at our discretion, refund the purchase price of any products proved defective. Satisfactory results depend not only upon quality products, but also upon many factors beyond our control. Therefore, except for such replacement or refund, BASF MAKES NO WARRANTY OR GUARANTEE, EXPRESS OR IMPLIED, INCLUDING WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE OR MERCHANTABILITY, RESPECTING ITS PRODUCTS, and BASF shall have no other liability with respect thereto. Any claims regarding product defect must be received in writing within one (1) year from the date of shipment. User shall determine the suitability of the products for the intended use and assume all risks and liability in connection therewith. Any authorized change in the printed recommendations concerning the use of our products must bear the signature of the BASF Technical Manager.

This information and all further technical advice are based on BASF’s present knowledge and experience. However, BASF assumes no liability for providing such information and advice including the extent to which such information and advice may relate to existing third party intellectual property rights, especially patent rights. BASF SHALL NOT BE RESPONSIBLE FOR CONSEQUENTIAL, INDIRECT OR INCIDENTAL DAMAGES (INCLUDING LOSS OF PROFITS) OF ANY KIND. BASF reserves the right to make any changes according to technological progress or further developments.

ContactUnited States 23700 Chagrin Boulevard Cleveland, Ohio 44122-5544 Tel: 800 628-9990 � Fax: 216 839-8821

Canada 1800 Clark Boulevard Brampton, Ontario L6T 4M7 Tel: 800 387-5862 � Fax: 905 792-0651

www.master-builders-solutions.basf.us

® Registered trademark of the BASF-Group in many countries © BASF Corporation 2015 � 09/15 � OTH-BRO-1051c � LIT #: AD 3000219

Master Builders Solutions from BASFThe Master Builders Solutions brand brings all of BASF’s expertise together to create chemical solutions for new construction, maintenance, repair and renovation of structures. Master Builders Solutions is built on the experience gained from more than a century in the construction industry.

The know-how and experience of a global community of BASF construction experts form the core of Master Builders Solutions. We combine the right elements from our portfolio to solve your specific construction challenges. We collaborate across areas of expertise and regions and draw on the experience gained from countless construction projects worldwide. We leverage global BASF technologies, as well as our in-depth knowledge of local building needs, to develop innovations that help make you more successful and drive sustainable construction.

The comprehensive portfolio under the Master Builders Solutions brand encompasses concrete admixtures, cement additives, chemical solutions for underground construction, waterproofing solutions, sealants, concrete repair & protection solutions, performance grouts, performance flooring solutions.

Master Builders Solutions products from BASF for the Construction Industry:MasterAir®

Solutions for air-entrained concrete

MasterBrace®

Solutions for concrete strengthening

MasterCast®

Solutions for manufactured concrete products

MasterCem®

Solutions for cement manufacture

MasterEmaco®

Solutions for concrete repair

MasterFiber®

Comprehensive solutions for fiber reinforced concrete

MasterFinish®

Solutions for formwork treatment

MasterFlow®

Solutions for precision grouting

MasterGlenium®

Solutions for high-performance flowing concrete

MasterInject®

Solutions for concrete injection

MasterKure®

Solutions for concrete curing

MasterLife®

Solutions for enhanced durability

MasterMatrix®

Advanced rheology control solutions for self-consolidating concrete

MasterPel®Solutions for watertight concrete

MasterPolyheed®

Solutions for moderate slump concrete with superior finishability

MasterPozzolith®

Solutions for conventional slump concrete

MasterProtect®

Solutions for concrete protection

MasterRheobuild®

Solutions for high slump concrete

MasterRoc®

Solutions for underground construction

MasterSeal®Solutions for waterproofing and sealing

MasterSet®

Solutions for set control

MasterSure®

Solutions for workability control

MasterTop®

Solutions for industrial and commercial floors

Ucrete®

Flooring solutions for harsh environments