Polyester mortars resin concrete

The characteristic brittleness of unsaturated polyester resins was overcome by reinforcement with silane-treated fiber glass. While over 750 thousand tons of these reinforced plastics are produced annually in the U.S., the emphasis in this chapter will be on room temperature-curable-filled unsaturated polyester mortars or concrete. As discussed in Chapters 1 and 7, these anaerobic polyester mortars are widely used as materials of construction.—... 

Technologies offered by unsaturated polyesters to the construction industry are directed at specific areas such as anchoring grouts, resin mortars and concretes, coatings and lighting sealants. The properties that make unsaturated polyesters more useful for construction are (Boeing, 1964 Demmler and Schlag, 1971 Manson, 1985) ... 

PET is useful polymer used for fiber, film, and plastic containers such as carbonated beverage bottles. Recently, the recycling of polymers such as PET after use is attracting the attention of many researchers aware of environmental problems and wishing to find ways to save earth resources. Previous studies showed that unsaturated polyester resins can be economically prepared from recycled PET and the resins may be useful for resin concretes (1 4). However, there is little information on the molecular features of the UPE resins. Thus, we synthesized various UPE resins from PET. Especially, the PET content, chain flexibility and degree of unsaturation of the resins were systematically varied and the effects of those variables on the mechanical properties of the cured resins and polymer mortars made therefrom were studied. 

Y. Ohama, K. Demura and M. Komiyama Length change of polyester resin concrete, in Proceedings of the Plastic Mortars, Sealants and Caulking Compounds, ACS Symposium Series 112, American Chemical Society, Washington, D.C. (1979), pp.67-78. 

The same polyester resins are used to formulate mortars and grouts as are used to formulate monolithic surfacings and polymer concretes. Carbon and silica fillers are used in the formulations. Polyester resins have a shelf life limitation and should be stored below 60 F (15°C). Any of the polyester-type resins provide suitable resistance to normal atmospheric corrosion (see Table 10.3). 

Polymers for Advanced Technologies 6, No. 11, Nov. 1995, p.688-92 MAKING POLYMER CONCRETE AND POLYMER MORTAR USING SYNTHESISED UNSATURATED POLYESTER RESINS FROM POLY(ETHYLENE TEREPHTHALATE) WASTE Abdel-Azim A AA Attia IA Egyptian Petroleum Research Institute Carro,Ain Shams University... 

Low modulus polyester resin mortars have also been developed. They too cure rapidly. They are principally used to fill cable slots cut across asphalt runways and also to fill over PVC cable ducts installed in concrete runways and taxiways (Shaw, 1993b). 

Resin Mortars This group includes the furans, phenolics, polyesters and the epoxies. Some of these mortars are used as thin membrane beds in lieu of asphaltic. Except for the epoxies and polyesters, most of these are acid catalyzed materials. The alkalinity of the concrete will retard the catalyzing reaction. Therefore, the concrete substrate must be neutralized before such a mortar is installed in direct contact with concrete. 

A red shale brick or quarry tile floor is usually installed over a hot or cold applied mastic membrane. The mastic is applied to the concrete floor then the brick or tile are set with a resin cement. The resin cement can be a furan, a polyester or an epoxy depending on the anticipated exposure conditions. If high temperatures and constant exposure to aggressive chemicals are anticipated, the brick or tile will be bedded in the mortar as well as having mortar joints. 

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