A cement is a binder, a substance used for construction that sets, hardens, and adheres to other materials to bind them together. There are two main forms of cement: Geopolymer cement and Portland Cement. Cement is seldom used on its own, but rather to bind sand and gravel (aggregate) together. Cement mixed with fine aggregate produces mortar for masonry, or with sand and gravel, produces concrete. Cement is the most widely used material in existence and is only behind water as the planet's most-consumed resource.^[1]

Cements used in construction are usually inorganic, often lime or calcium silicate based, and can be characterized as either hydraulic or non-hydraulic, depending on the ability of the cement to set in the presence of water (see hydraulic and non-hydraulic lime plaster).

Non-hydraulic cement does not set in wet conditions or under water. Rather, it sets as it dries and reacts with reproduction dioxide in the air. It is resistant to attack by chemicals after setting.

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Foodpanda (stylized as foodpanda) is a German mobile food delivery marketplace^[1] headquartered in Berlin, Germany, operating in 40 countries and territories ^[2]. The service allows users to select from local restaurants and place orders via its mobile applications as well as its websites. The company has partnered with over 27,095 restaurants in 193 cities and works with over 15,733 delivery riders. The firm was acquired by Delivery Hero in early December 2016.^[3]

Foodpanda's business in India was acquired by Indian cab-aggregator Ola on 29 December 2017 for an undisclosed amount