*3.2.2 Isometry in prefabricated houses with confined masonry*

The isometry of houses with confined masonry is as similar as those built with prefabricated elements with reinforced concrete element s. The view is common and the singular perspective, which differs externally between them are the different dimensions of length and width, which implies a larger surface area, expressed in different values.

#### **3.3 Process of elaboration of precast reinforced concrete elements**

In the manufacturing process, equipment and machines are used that must have the property of moving them to a place with minimal conditions and can be established in nearby places where prefabricated houses are assembled.

The machines and equipment to be used are:


**Figure 5.** *Plant view VUF 05.*


The manufacturing process requires having molds to make the prefabricated elements. The molds respond directly to the design and must respond to the requirements of the projects. Efficiency is increased when a mold or a small number of molds can be so versatile and can produce a wide variety of precast elements.

A 2.40 m x 9.60 m mold has been designed with a variable mold thickness from 0.10 m to 0.40 m, designed from iron plate, having to have several molds that can give shape to pieces of variable configuration. There must be space for doors and windows, it must allow to place the sanitary and electrical installations. You can also use wooden formwork to expose a glossy finish.

Concrete to achieve the projected strength must be subjected to a vibration process. The designed system consists of placing the molds on rails with a vibration *Low-Cost Single-Family House through The Use of Precast Reinforced Concrete Elements DOI: http://dx.doi.org/10.5772/intechopen.98430*

**Figure 6.** *Plant view VUF 06.*


#### **Table 4.**

*Areas and codes of single-family housing confined masonry VAC.*

platform. When the production of precast elements moves to another location the vibration process is replaced with the use of additives, depending on the cost, the use of additives can replace the physical vibration process.


### **Table 5.**

*Detail of the environments by surface in square meters – VAC.*

