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Abstract
In the present work, polymeric composites were prepared for coating floors and swimming pools in dark colors. This was achieved through the use of a polymer coating solution added to fine cement with weight percentage (wt%) values of 5, 10, 15, 20, and 25 to obtain dark-colored (gray) composites. Mortar samples were prepared using the adhesion test. The contact angle and adhesion strength were studied for the prepared samples concerning the effect of changing the weight ratio of additive cement on water absorption. Also, the antibacterial activity was tested for the prepared coatings. The results showed that the contact angle increases with increasing the weight ratios of additive cement, which indicates that the prepared coating is not hydrophilic and water-impermeable. Besides, the adhesion was shown to increase with increasing the weight ratio of cement. According to the antibacterial activity analysis, it was found that the highest efficacy for killing Staphylococcus areus was observed at cement ratios of 5 and 15 wt%, whereas no activity was observed against Escherichia coli.
Highlights
Coating systems must be compatible with the surfaces to which they are applied
Composites are generally explained as the combination of a matrix and an additive, with at least one characteristic that is different from those of the specific components [3]. Within this context, waterproofing materials can be divided into two categories, flexible and rigid. Flexible waterproofing materials such as coils and coatings have the features of flexibility and good durability, but they are poor at adhesion and out of use in the case of wet base surfaces [4]
The study tested the capillary water absorption, impermeability, and cracking of cement mortars modified with three polymers and found that cracking is correlated with waterproof performance
Summary
Coating systems must be compatible with the surfaces to which they are applied. The incompatible coating could be failing merely following application or after a much longer time. The major work of cement is to act as a hydraulic binder which raises the chain between fragmented grains and thereby can enable their use in various fields [2] It is well-known that a composite is composed of two or more specific types of materials, which can include metals, ceramics, and polymers. Composites are generally explained as the combination of a matrix and an additive, with at least one characteristic that is different from those of the specific components [3]. Within this context, waterproofing materials can be divided into two categories, flexible and rigid. The results showed that, with the increase in polymer content, especially as the polymer/cement ratio increases from 0 % to 5 wt%, the reduction in the capillary water absorption and the penetration depth of water into mortars is becoming more significant [7]
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