new
or
You are here : Stone Home > Info Center > Tools & Equipments > Quarrying and Fabrication

Quarrying and Fabrication

Updated:2007-11-19 14:26:15

1 For large projects it is prudent for members of the design team to visit the quarry and the manufacturing plant to check on the availability of the stone required.

To obtain a more uniform and aesthetic appearance, as well as more uniform strength, all blocks should be quarried to dimensions which will allow uniform slabbing in relation to the bedding plane of the rock. Most stones have higher flexural strength if slabbed parallel with the bed. Sedimentary rocks, such as limestone and sandstone, should always be slabbed parallel with the bed.

2 Fabrication shall be in strict accordance with specifications and approved shop drawings. Tolerances described in the specifications must be followed. Shop inspection of fabricating is strongly recommended to protect all parties from possible later disputes about color ranges, marking, structural defects, or improper thickness. Anchor holes, cut outs for other trades, and lifting holes shall be provided in the shop and NOT on the job site.

For large projects a mock-up sample wall should be erected in the fabrication plant as a guide to control the uniformity of the stone color and texture. If this is not done, stone slabs with improper coloration or texture may be cut to final dimensions and shipped to the job site where they may be installed. At this point, the removal of rejected pieces and re-installation can be very costly.

To prevent the installation of slabs with improper quality, coloration, or texture a mock-up sample wall, or floor, should be erected at the jobsite, for the approval of the Architect. Once the quality and the appearance of the stone and its method of installation is approved, it is critical that proper supervision be maintained to insure against sub-standard installation, or against the use of stone slabs beyond the approved range of color, texture, and quality of the mockup.

For controlling the consistent quality of the stone, it is prudent to apply specially designed shop tests for a certain percentage of the slabs to be used on the project. Such shop testing is usually done by applying uniformly loaded weight on the slabs, or by using a small test chamber for applying static pressure.

3 For composite panels, such as precast concrete faced with natural stone, or stone slabs pre-assembled on steel frames or trusses, inspection of the assembly is recommended to insure the specifications and design details are followed. In many cases the anchors, shelf angles, reinforcing steel, insulation, slip-sheet and other components are not exposed to view. The consequences of improper assembly may only become evident years after the panel erection.

Special care shall be taken in handling and storing composite panels to prevent bowing, chipping freeze-thaw, and other damage.

Table 14.4

 




source: Building Stone Institute

Premium Related Products
Portable Stone Cutter
Portable Stone Cutter
Price:Negotiation
Origin:China
Categories:
Xiamen Refine Industry Co.,LTD
ChinaChina
Kerbstone
Kerbstone
Price:$ 10-50
Origin:China
Categories:Granite
Hongzhi (Nan'an) Stone Industry Co., Ltd.
ChinaChina
Paving Stones
Paving Stones
Price:$ 10-50
Origin:China
Categories:Granite
Hongzhi (Nan'an) Stone Industry Co., Ltd.
ChinaChina
Browse by: Stone Manufacturers | All Products | For Buyers | For Sellers | Suppliers | Stonebtb.com International | Stonebtb.com China | Site Map
About Us | Stonebtb Service | Contact Us | Our Partners | Video | Exchange Link | Terms of Use
Copyright 2007-2020 Stonebtb.com All rights seserced