Density of waterproof mortar To make a good waterproof mortar, it is not only necessary to improve its water repellency but also to enhance its water pressure resistance, which often depends on the density of the mortar. What methods can be used to improve the density of waterproof mortar? Optimal aggregate mix Use aggregates of … Continue reading
Because polyvinyl alcohol has higher bonding strength than latex powder, it can be used to replace part of the latex powder in crack-resistant mortar within the scope of cost control. However, polyvinyl alcohol cannot be used entirely because latex powder has the following characteristics that polyvinyl alcohol cannot compensate for. Flexibility and crack resistance Since … Continue reading
In construction, plaster materials are widely used in plastering, wall leveling, and decorative coatings due to their environmental friendliness and light weight. However, one of the most common and headache-inducing problems at construction sites is hollow drums, delamination, and flaking. The underlying cause is often insufficient plaster adhesion and poor water retention. So, how can … Continue reading
Water-Reducing Agent Polycarboxylic acid-based water-reducing agents have developed and been applied rapidly. They are widely used in major and key engineering projects such as water conservancy, hydropower, water engineering, marine engineering, and bridge construction. Mechanism of Polycarboxylic Acid Water-Reducing Agent When cement is mixed with water, due to the intermolecular forces between cement particles, the … Continue reading
Polycarboxylic acid water reducing agent is a commonly used concrete additive, which can effectively reduce the amount of cement in concrete, improve the fluidity of concrete and reduce the shrinkage of concrete. However, the use of polycarboxylic acid water reducing agent also needs to pay attention to some problems. The following is a detailed introduction … Continue reading
Differences Between Dry-Mix Mortar and Traditional Mortar One of the significant differences between dry-mix mortar and traditional mortar lies in the use of small amounts of chemical additives for modification. If a single additive is added to dry-mix mortar, this is referred to as primary modification; if two or more additives are added, it is … Continue reading
Water-reducing agents have become an essential tool in the pursuit of more sustainable and efficient construction practices. These chemical additives, commonly known as water reducers or concrete water reducers, are changing the way we create durable infrastructure while minimizing our impact on the environment. As global attention shifts towards sustainable development, these additives are playing an … Continue reading
The application of exterior wall insulation layer construction technology in building construction significantly enhances the thermal insulation performance of buildings while reducing construction costs. It ensures construction quality and effectively improves corporate economic benefits, making it a highly recommended technology. Currently, the most widely used insulation material is polymer insulation mortar, a new type of … Continue reading
1. Material Requirements The materials used for cement mortar plastering must meet the following requirements: (1) Cement should be ordinary Portland cement with a strength grade of P.O 42.5 or higher, and the mixing time should be controlled between 5 and 10 minutes; (2) The mortar should be made from fine sand that meets building … Continue reading
1 \ Crack-Resistant Mortar / Crack-resistant mortar (anti-crack mortar) is a type of mortar made by mixing a crack-resistant agent (composed of polymer emulsion and additives), cement, and sand in a specific ratio with water. It is designed to withstand certain levels of deformation without cracking. When used in conjunction with mesh fabric, it achieves … Continue reading