3.Abstract: By using engineering example this paper briefly introduces the application and constrction method of ferroconcrete filling pile in the transformation of old buildings.
4.B47 breaker is a pneumatic instrument manufactured with the mature technology of America Gardener Denver Corporation.Featuring portability,durability,great efficiency and speed,the breaker can break ferroconcrete,rocks and asphalt.It is ideal machinery for the construction and backout of mines bridges,roads,water pipes and electricity grids.
5.Abstract: To overcome the dusadvantage of the wood formwork used as a belly-core formwork for concrete box girders, a permanent ferroconcrete formwork, which was fit for the construction of box girder and does not need to be removed after concrete pouring,was presented in this paper.It was approved by the indoor experiment that a well combination between this formwork and the concrete of box girder was generated, and the durability of concrete was also advanced.
6.B87C breaker is a pneumatic instrument manufactured with the mature technology of America Gardener Denver Corporation.It is more powerful in breaking ferroconcrete,rocks and asphalt.Boasting greater efficiency and durability,it suits the requirements of breaking outsized,super-thick and hard objects.It is ideal machinery for the substructural construction of mines,bridges,roads and civil infrastructure.
7.Of all kinds village does an enterprise to should be mixed in civilian curtilage in the center; (Should stay between 2) building have appropriate fire prevention span and fire prevention channel; (3) abuts type farming curtilage every between due firewall; (When 4) builds bridal chamber house, should raise architectural fireproof grade, use the blame combustion housing materials such as ferroconcrete, brick, tile; When decorating, reduce use bamboo, wood to wait as far as possible can burn material.
