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Latex-portland cement

Latex-Portland cement mortar with glazed waU tile, quarry tile and porcelain and/or mosaic file ANSI 118.4... [Pg.240]

Latex-Portland cement mortar with quarry tile on plywood ANSI 118.11... [Pg.240]

Specifications for EGP (exterior glue plywood) Latex Portland cement mortar... [Pg.335]

Well cementing materials vary from basic Portland cement used in civil engineering construction of all types, to highly sophisticated special-purpose resin-based or latex cements. The purpose of all of these cementing materials is to provide the well driller with a fluid state slurry of cement, water and additives that can be pumped to specific locations within the well. Once the slurry has reached its intended location in the well and a setup time has elapsed, the slurry material can become a nearly impermeable, durable solid material capable of bonding to rock and steel casing. [Pg.1177]

A somewhat crude though convenient classification can be made on the basis of the principal ingredients, thus. (1) Portland cement, (2> high alumina cemenl. (3) sodium silicate. (4 magnesium oxychloride plus copper powder, (5) litharge or red lead plus glycerol. (6) rubber latex, and (7) synthetic resins. Supplementary materials to be considered are asbestos, white lead, plaster of Paris, sulfur, graphile, sand, pilch, tar, rosin, and boiled linseed oil. [Pg.314]

Lavelle, J.A. (1983) Acrylic latex modified portland cement, ACI Material Journal, 85(1), 41-8. [Pg.125]

Lavelle, J.A. (1986) Acrylic latex modified portland cement, paper presented at the American Concrete Institute, Baltimore, MD published by Rohm Haas, Philadelphia, PA. Panek, J.R. and Cook, J.P. (1984) Construction Sealants and Adhesives, John Wiley, New York, pp. 138-43. [Pg.125]

The ratios of sand to Portland cement are generally 3 1 the percentage of latex solids to cement may range from 5%-20%, and the v/ater/cement ratio may range from... [Pg.83]

It has already been indicated that SBR latices are stable and are unaffected by the addition of large amounts of calcium chloride. This is an indication that calcium chloride may be used with an SBR latex modified mortar in the same way that it is used with an unmodified cement mortar. In general, the addition of 2% calcium chloride, based on the Portland cement, improves the early compressive strength development, from 24 hours to 7 days. [Pg.85]

Dow Latex 560 for Portland Cement Compositions, Dow Oiemical Co., Midland, Michigan (1959)... [Pg.8]

Ordinary portland cement is widely used for latex-modified mortar... [Pg.22]

Hilton, M. H., Walter, H. N., and McKeel, W. T., Jr., Latex Modified Portland Cement Overlays An Analysis of Samples Removed from a Bridge Deck, VHTRC 76-R25, p. 11, Virginia Highway Transportation Research CouncU, Charlottesville, Virginia (Nov. 1975)... [Pg.156]

In Japan, calcium silicate-SBR latex-glass fiber-based compos-itesi or portland cement-fly ash-SBR latex-carbon fiber-based compos-itesi l have recently received much attention as new artificial wood. Table 8.3 gives die comparison of the properties of the calcium silicate-SBR latex-glass fiber-based artificial wood with natural wood.1 1... [Pg.217]

PIC is a precast and cured portland cement concrete that has been impregnated with a monomer that is subsequently polymerized in situ. This type of cement composite is the most developed of polymer-concrete products. PCC, on the other hand, is a modified concrete in which a part (10%-15% by weight) of the cement binder is replaced by a synthetic organic polymer. It is produced by incorporating a monomer, prepolymer-monomer mixture, or a dispersed polymer (latex) into a cement-concrete mix. To effect the polymerization of the monomer or prepolymer-monomer, a catalyst (initiator) is added to the mixture. The process technology used is very similar to that of conventional concrete. So, unlike PIC which has to be used as a precast structure, PCC can be cast-in-place in field applications. PC can be described as a composite that contains polymer as a binder instead of the conventional portland cement. [Pg.764]

Polymers. The purpose of adding polymers to the concrete matrix is to improve the characteristics of the fresh concrete (such as workability) and also to enhance the hardened properties such as flexural strength, modulus of elasticity and adhesive performance [8]. The incorporation of polymers into concrete may be in the form of polymer modified concrete (PMC), polymer impregnated concrete (PIC) or as polymer concrete (PC) [9], For this project, the objective was to develop an ultra-lightweight concrete material using Portland cement as the main binder modified with a suitable polymer - thus a PMC application. The polymer modifiers selected for the development of the ultra-lightweight thin filmed material were a commercially available SBR latex as well as a readily available acrylic polymer. [Pg.132]

Variation of Compressive and Tensile Strength of Portland Cement Mortars with Polymer Latex Modification"... [Pg.349]

Under normal conditions on repair sites it seems likely that a more reliable bond can be achieved by using a bond coat rather than by relying on any natural bond between fresh and hardened Portland cement concretes(2). However, bonding agents for use on site must be tolerant of site conditions, be reliable and cannot be selected solely on the basis of slant shear results. The bonding performance of carefully applied SBR and acrylic latex/cement slurry coats appears to be similar to that of epoxy resin bonding aids(14). However, other factors such as open time, barrier coat effects and cost may affect the final choice. [Pg.217]

An examination is made of the production, composition and properties of Portland cements containing aggregates and modified with rubber or thermoplastic latices. The formulation of a cement containing SBR latex and sand for use in corrosion resistant flooring is discussed. [Pg.110]

B) Polymer-cement concrete is a modified concrete in which a part of the cement binder is replaced by organic polymer. It is produced by incorporating a monomer, prepolymer, or dispersed polymer latex into a cement-concrete mixture. The process technology used is similar to that of conventional concrete and has the advantage that it can be cast in place for field applications. Most of the polymer-cement-concrete composites are based on different kinds of lattices obtained especially by emulsion polymerization. The lattices are aqueous emulsions containing polymer particles such as SBR, NBR, PVAc, copolyesters of AA-MAA, and PAA-PMAA-SBR. The compatibility of SBR, PVAc, and acrylic lattices with Portland cement produces particular characteristics that led to wide use of this component as polymer-concrete composites. [Pg.104]

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]

Portland cement concrete produced by replacing a specified portion of the mixing water with a latex (polymer emulsion). [Pg.468]

The design of polymer modified concretes is based on similar reasoning as for Portland cement concretes, but there are no published programs. In PCC, the binder is composed with two phases Portland cement and polymer phase that may be introduced to the mix as polymer latexes, and water-soluble polymers or liquid polymers. There is a continuous relation between PCC and PC when the polymer fraction (starting from 10% mass) is increased... [Pg.446]


See other pages where Latex-portland cement is mentioned: [Pg.241]    [Pg.335]    [Pg.241]    [Pg.335]    [Pg.548]    [Pg.44]    [Pg.253]    [Pg.84]    [Pg.89]    [Pg.1]    [Pg.22]    [Pg.205]    [Pg.208]    [Pg.212]    [Pg.765]    [Pg.410]    [Pg.31]    [Pg.42]    [Pg.43]    [Pg.45]    [Pg.47]    [Pg.338]    [Pg.277]    [Pg.4210]    [Pg.467]   
See also in sourсe #XX -- [ Pg.246 ]




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