In the construction industry, polyacrylamide also plays a vital role. Many industrial and construction enterprises will first consider using polyacrylamide as a professional glue additive. Generally, polyacrylamide is used as thickening agent in building glue. Besides polyacrylamide, the raw materials of building glue include polyvinyl alcohol, acrylamide, cellulose, etc. there are many kinds of common building glue, such as 107 glue, 108 glue, 801 glue, 901 glue and so on. There production process is basically the same, but there is a big difference whether polyacrylamide is added to the glue. Polyacrylamide has a high polymer chain structure, which can greatly improve the strength of the glue. At the same time, polyacrylamide has a very good water retention, which can significantly reduce the drying speed during the construction, so as to ensure that there will not be such adverse phenomena as galling and peeling due to too fast drying during the construction. Anionic polyacrylamide or nonionic polyacrylamide is generally used as thickener in glue and interior wall coating, and cationic polyacrylamide is also used, but different situations should be analyzed differently.

The chemical industry usually built on water, because sufficient water can ensure production, but at the same time, it will produce serious water pollution and air pollution. Chemical industrial wastewater treatment is very complex compared with ordinary wastewater treatment. In the process of chemical industrial wastewater treatment, flocculants, coagulants and decolorizers are needed. One of the most commonly used flocculants is non-ionic polyacrylamide, which has the following obvious trends compared with other flocculants: 1. The molecular chain of non-ionic polyacrylamide contains polar groups, which can absorb suspended particles in water, bridge between particles, thus forming larger flocs; 2. The non-ionic polyacrylamide flocculant can accelerate the precipitation of suspended particles by forming larger flocs, so as to speed up the clarification of solution and promote filtration; 3. In all flocculant products, the effect of non-ionic polyacrylamide in treating acid wastewater is good, while chemical industrial wastewater is generally acidic, so non-ionic polyacrylamide has its specific advantages in treating chemical industrial wastewater; 4. High molecular polyacrylamide can cooperate with other flocculants, when inorganic salts such as polyaluminum and Polyferric are used, the effect will be better.