1 Chemical preparations for use as densifiers for concrete or asphalt surfaces, namely, silicate-based densifiers in the nature of chemical compositions for application to concrete and asphalt for increasing density; chemical preparations for use as densifiers for pavement, namely, silicate-based densifiers in the nature of chemical compositions for application to pavement for increasing density; chemical preparations for use as wear-resistant treatments for concrete or asphalt surfaces, namely, silicate-based chemical preparations in the nature of chemical compositions for application to concrete and asphalt; chemical preparations for use as wear-resistant treatments for pavement, namely, silicate-based chemical preparations in the nature of chemical compositions for application to pavement; chemical preparations in the nature of anti-scale treatments for concrete or asphalt surfaces, namely, chemical compositions for application to concrete and asphalt for preventing scaling; chemical preparations in the nature of anti-scale treatments for pavement, namely, chemical compositions for application to pavement for preventing scaling; chemical preparations for use as densifiers for hard floor surfaces, namely, silicate-based densifiers in the nature of chemical compositions for application to concrete and asphalt for increasing density; chemical preparations for use as wear-resistant treatments for hard floor surfaces, namely, silicate-based chemical preparations in the nature of chemical compositions for application to concrete and asphalt; chemical preparations in the nature of anti-scale treatments for hard floor surfaces, namely, chemical compositions for application to concrete for preventing scaling; chemical preparations in the nature of stain-repellents for hard floor surfaces; chemical preparations for use as densifiers for concrete, masonry, or stone surfaces, namely, silicate-based densifiers in the nature of chemical compositions for application to concrete for increasing density; chemical preparations for use as wear-resistant treatments for concrete, masonry, or stone surfaces, namely, silicate-based chemical preparations in the nature of chemical compositions for application to concrete; chemical preparations in the nature of anti-scale treatments for concrete, masonry, or stone surfaces , namely, chemical compositions for application to concrete and stone for preventing scaling; chemical preparations in the nature of stain repellants for concrete, masonry, or stone surfaces