The subject of the invention is a coating, in particular intended for acoustic correction, comprising: - at least one mineral binder, - aggregates, including: ○ light aggregates, the density of which is at most 700 kg / m3, in a content of at most 20% by weight relative to the weight of the plaster, ○ heavy aggregates, the density of which is at least 1500 kg / m3, in a content of at least 50% by weight relative to the weight of the coating, the mass fraction of the aggregates having a size of at least 0.5 mm being at least 40%, said coating having a density ranging from 700 to 1200 kg / m3 and a resistivity with air flow ranging from 1.104 Nsm-4 to 5.105 Nsm-4.
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机译：本发明的主题是一种涂层，特别是用于声学校正的涂层，包括：-至少一种矿物粘合剂;-集料，包括：○轻集料，其密度至多为700 kg / m3，含量为相对于灰泥的重量，最多20％（重量）○重的集料，其密度至少为1500 kg / m3，相对于涂料的重量，含量至少为50％（重量）至少0.5mm的骨料的至少一部分为至少40％，所述涂层的密度为700至1200kg / m 3，并且电阻率与气流的范围为1.104Nsm-4至5.105Nsm-4。
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