This paper reports the characterization of organic and inorganic additives from the 16th century Western Indian Fort of Solapur. The analytical investigations were performed employing a petrographic thin section, granulometric analysis, XRF, XRD, FTIR, SEM-EDX, and DTA/TGA. The studies indicated the occurrence of the calcite polymorphs and inclusion of clay minerals i.e., illite and vermiculite in one sample of the plasters. Calcite rich air-lime showed the presence of essential minerals like quartz, feldspar, biotite and lime component. Observations under SEM, light microscopy and polarized microscopy revealed inclusions of bamboo foliage, millet grains enclosed in lemma and palea and Flax fibres as organic additives in the plaster as reinforcement. Although the use of bamboo culm in construction has adequately been reported, for the first instance bamboo foliage was evidenced in plasterworks of Solapur fort. The high silica content of bamboo foliage probably helped in providing strength to the plaster. The inclusion of millet grains has provided thermal, gelatinization and hydration properties to the plasters. The stronger, crisper and stiffer flax fibres gave thermal and elastic properties to the Solapur fort plasterworks.

中文翻译：

---

传统的有机添加剂（竹叶，亚麻纤维和谷粒）在16世纪印度索拉普堡的石灰灰泥中的使用

本文报道了16世纪西印度索拉普堡的有机和无机添加剂的特征。分析研究使用岩相薄片，粒度分析，XRF，XRD，FTIR，SEM-EDX和DTA / TGA进行。研究表明，在一个石膏样品中发生了方解石多晶型物和粘土矿物（伊利石和ver石）的夹杂。富含方解石的石灰表明存在必不可少的矿物，例如石英，长石，黑云母和石灰成分。在扫描电镜，光学显微镜和偏光显微镜下进行的观察表明，竹叶内含物，和内含物中的谷子颗粒以及作为增强剂的石膏中的亚麻纤维是有机添加剂。尽管已充分报道了在建筑中使用竹杆的情况，首先，在索拉普尔堡的灰泥工厂中发现了竹叶。竹叶的高二氧化硅含量可能有助于为石膏提供强度。包含谷粒已经为灰泥提供了热，糊化和水合性质。亚麻纤维更强，更脆，更硬，赋予了Solapur堡垒石膏厂以热和弹性的特性。