Jointing concrete is expected to avoid cracking

Jointing concrete is expected to avoid cracking

The 5.8 magnitude earthquake that rocked the Italian regions of Modena, Parma and Bologna on 29 May took out more than 3,500 Italian companies who had facilities in the region, including demolition attachment manufacturer Mantovanibenne, whose Mirandola HQ and manufacturing centre was so heavily damaged that it has had to be demolished. Expansion joints must be cut in large slabs. A jointer held against a straight edge produces a nice, straight-line groove.

Even when an installer has followed all the proper guidelines and procedures, cracking can occur. While proper jointing procedures will control cracking in the vast majority of cases, even properly jointed concrete can crack in places other than the joints. No one can guarantee that concrete will not crack, however. You must understand that cracks are usually not an indication of a serious problem in most cases. Most of these cracks are simply unplanned joints (in many cases unstable substrate under the slab is the cause) - they are no more a threat to longterm appearance and maintenance than the joints that were intentionally applied.
Despite losing its major production facility, Paulo Mantovani told D&Rithat the company has returned to full production capacity as of the middle of June, just five weeks after the quake. This has been achieved by switching production to two other manufacturing plants - a factory in Bulgaria and its joint venture facility in China. The former will now produce the company's range of crushers and pulverisers, with the latter producing the 'Basic' range of tools that were originally intended for the Asian market but which now will also be offered to the European market.
One of the world's largest manufacturers of building materials including aggregates, cement, , concrete, and associated downstream activities, HeidelbergCement supports operations in more than 40 countries through this critical global network of data centers. Heidelberg Cement chose the Rackwise(R) DCiM X(TM) solution for its ability to centralize tracking, management, and reporting of the physical asset inventory from a single solution and location. After evaluating other available DCIM solutions, HeidelbergCement found the Rackwise(R) offering to deliver the most comprehensive solution set including the capability to manage worldwide networks of data centers from a single console. D&Ri was told that, mercifully, none of Mantovanibenne's employees was injured during the two major shocks that hit on the 28th and 29th, nor by the more than 2,000 subsequent aftershocks that continue to hit the region. Mantovanibenne has also been greatly assisted during this period of major upheaval by Italian demolition contractors Baraldi and Despe, who freely supplied cone crusher equipment and personnel to aid the company in its time of trouble.