Development of waterproof gypsum hollow block;

Topology optimization design of a new hollow block by ANSYS;

Development of small fly ash hollow block;

Thermal characteristics of hollow building block with inserting thermal insulation layer and its improvement measures;

According to the requests on building energy-saving of 50% and material-saving in China,the hollow building block inserted with thermal insulation layer is one of the typical multiple wall structures,which could be used to improve the thermal characteristics of building envelope in hot summer and cold winter zone.

According to the request of energy saving 50% of building energy loss and material saving by our country,for the moment,hollow building blocks are widely used in building exterior-protected constructions to satisfy the requirement of thermal resistance in hot summer and cold winter zone.

By using fly-ash as a binding material and slag and ultrafine sand as base materials,hollow blocks made of fly-ash and slag that can meet the requirements in the wall materials construction are produced.

Method and relevent technology parameters of fly-ash hollow blocks are introduced.

Special mortar and casting concrete used for hollow concrete blocks in highrise building;

Taken small sized hollow concrete block as example,from the three sides of block material,design,construction the reasons caused the common quality defects of cracking to masonry buildings are analyzed,at the same time corresponding prevention measures are proposed in order to ensure the normal service performance of block masonry buildings.