Sound insulation mortar is a kind of special mortar with both heat insulation and sound insulation effects. At present, the actual situation is that the sound insulation mortar itself has certain heat insulation performance, and some heat insulation mortars naturally have sound insulation effect, but there are few references that attach equal importance to it in practice. The subject specially talked about the ground sound insulation mortar, which increased the requirements of strength and so on. The special mortar in this special mortar is even less common.

Rarity is not because of rarity, but because of demand. At present, there are almost no users who buy ground sound insulation mortar separately, so the technical department has little technical reserves in this respect. But less doesn't mean it's meaningless. Chongqing University once had a master's thesis that specifically mentioned sound insulation mortar, but personally, the thesis was too theoretical and not very practical (once again, it was my personal opinion).

Specifically, "ground sound insulation mortar" is actually used on the ground. First of all, it is necessary to meet the strength requirements of ground mortar, and on this basis, it is necessary to increase the requirements of sound insulation and heat preservation. In fact, sound insulation and strength are opposite, which can be simply understood as: high strength is hard, hard things have high density, and dense things transmit sound quickly and conduct heat quickly, so high strength and sound insulation are opposite. The key point of sound insulation mortar for ground is to reconcile this contradiction and achieve the greatest compromise.

What I want to explain is that the products mentioned by the subject exist, and many experts are studying them, but because of the small number of users, they are rarely seen in newspapers and media.