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Concrete PPCC

Concretes with polymers are generally classified into three categories as polymer concrete (PC), polymer Portland cement concrete (PPCC), which is also known as latex-modified concrete (LMC) and polymer-impregnated concrete (PIC) according to their process technologies. [Pg.128]

Polymer concrete is a composite material formed by polymerising a monomer and aggregate mixture. There is no other cementitious material present in it. PPCC (or LMC) is a Portland cement concrete produced usually by replacing a specified portion of the mixing water with a latex (polymer emulsion). It can also be produced by adding a monomer to fresh concrete with subsequent in situ curing and polymerisation. PIC is a hardened Portland cement concrete with impregnated monomer which is polymerised in situ. [Pg.128]

PPCC mixtures are Portland cement concrete mixtures to which polymer latexes have been added during the mixing process. Hardening of the polymer occurs simultaneously with the curing of concrete thus forming a continuous polymer network throughout the concrete [11, 16]. [Pg.132]

PPCC applications include deck coverings, floors, pavements, precast units, anti-corrosive linings, adhesives, patching or repairing Portland cement concretes [11, 17]. [Pg.132]

The dispersed polymer phase throughout the concrete causes considerable reduction in porosity and microcracks in the Portland cement matrix as well as serving as an additional binding material [11, 19]. Thus, PPCC is a more durable and weather resistant material for deck coverings and parking lot overlays. [Pg.133]

Patching and Repair Very high bond strength of PPCC makes it a suitable material for patching and repair of portland cement concrete. The deteriorated or unsound concrete must be removed properly before PPCC application. [Pg.133]

The corroded reinforcements should be blast-cleaned. The reinforcing bars that have lost more than one-quarter of their original diameter should be replaced by new ones. If the bond between the existing concrete and the reinforcement is destroyed or more than half of the reinforcing steel diameter is exposed, the concrete around the reinforcement should be removed to leave at least 19 mm clearance so that PPCC will bond to the entire reinforcing steel. Care should be taken to prevent damage to the exposed reinforcement [11]. [Pg.134]


See other pages where Concrete PPCC is mentioned: [Pg.472]    [Pg.472]    [Pg.128]    [Pg.132]    [Pg.133]    [Pg.491]   


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Polymer Portland cement concrete PPCC)

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