What is cement?
Cement is any variety of mixtures of clay, limestone, water, sand and gravel which forms concrete to be used as material for building things. To cement also means to join or unite. In art, cement can mean the process of gluing securely.Image © Pattypattra/Shutterstock
Art informel refers to gestural techniques and improvisatory methods common to abstract painting during the 1940s and 50s. It is a French term for the many styles that dominated these decades. Artists use this term because these styles were based on primarily informal techniques.
Happening is the term used to describes artistic, theatrical events held by artists of the 1950s and 60s. These events were usually staged in a gallery installation or planned environment which featured audience participation, lighting, sounds and slide projections. Later, performance art included the artists.
In the 1960s, Fun Art was a reactive movement against abstract exressionism. It was widely known as an anti-establishment movement, the name comes from the jazz term "funky". This had positive and negative notations as the term in the jazz world, described passion, quirkyness, and sensuality, while it could also be associated with a foul odor. Funk was popular in California Bay Area, and while the artists of the Funk Art era had similar attitudes and artwork, they did not consider themselves as a part of a group movement.