The effect of redispersible vinyl acetate and versatate copolymer va veova powder on the flexibility of cement mortar is studied using the methods of the transverse deformation and the ratio of compressive strength to flexural strength σc σf to explore the possibility of these two methods in charactering the flexibility of va veova powder modified mortar.
Vinyl versatate and compressive strength.
Results show that the compressive strength and moduli of several syntactic foam compositions are comparable to those of the neat matrix resin.
Prediction of compressive strength.
The effect of the dosage of redispersible polymer powder of vinyl acetate and versatate on the compressive and flexural strengths was investigated in details.
In the previous investigation it was found that the difference in young s modulus ultimate tensile strength and yield strength between microwave cured vinyl ester particulate composites and those cured under ambient conditions is minimal provided low power microwaves are combined with short duration of exposure.
Polymer concrete was introduced in the late 1950s and became well known in the 1970s for its use in repair thin overlays and floors and precast components.
The compressive strength decreased with increasing polymer content.
Va veova powder makes the compressive strength decrease but not so significant the effect on the flexural strength is which results in the ratio of compressive strength to flexural strength goes.
According to a previous study the incombustibility of pcm varies depending on the polymer type and unit polymer content.
The compressive strength test showed that the vva series had lower strength.
Chloride strength tensile very good mechanical properties.
2 days moist 3 days wet and 10 days dry cured regardless of polymer type the compressive strength latex modified concrete can be predicted at polymer cement ratio of 5 10 15 and 20 by using binder void ratio q as follows.
Good compressive properties variable with the species of wood and moisture content.
Because of its properties like high compressive strength fast curing high specific strength and resistance to chemical attacks polymer concrete has found application in very specialized domains.
Polymer cement ratio fck 5 657 q 40 10 595 q 88.
Va veova powder makes the compressive strength decrease but not so significant the effect on the flexural strength is which results in the ratio of compressive strength to flexural strength goes down sharply with the increase of va veova powder indicating the toughness of cement mortar is improved markedly.