## 5 Conclusions  
(1) The MG slide seismic isolator offers stable force-bearing performance, and the isolation system in general delivers outstanding hysteresis performance. As the imposed horizontal loading reaches 1/7 to 1/5 of the loading limit, slippage isolation comes into play.  
(2) Mortar bars embedded in the upper-lower-beam interface help control the initiating loads for the foundation slippage; the quantity and the design parameters of the bars serve as governing factors. The design aims to ensure that the isolation slippage is initiated only by moderate vibrations. The isolation system remains intact under minor vibrations or wind loads, whereas during a major seismic event, the isolation system largely prevents the transfer of seismic energy to the superstructure and thereby prevents damage or failure.  
(3) The stop block developed for the MG isolation system is equipped with restrictive iron screws of good ductility. During a major seismic event, the stop block provides outstanding strength and quite good force-bearing performance. At the displacement limit, the specimens are damaged only when the imposed low-reversed cyclic loading exceeds the initiating load by a large margin. Therefore, in the case of a major seismic event, the isolation system can still restrain the maximum slippage displacement.  
(4) The steel bars of the stop blocks (the force imposed upon which at the preliminary deformation and isolator slippage stage is insignificant) consumes only limited energy in elastic deformation, mainly due to the rolling of the marbles. At the seismic resistance of the wall stage, the steel bars yield and deform only upon the cracking of the wall. Therefore, in this destructive experiment, the seismic energy is consumed in the rolling of the marbles and in the deformation of the steel bars embedded in the stop blocks. However, as it is stipulated in relevant specifications, engineering design shall avoid the occurrence of wall cracking and the yield of the steel bars of stop blocks, thus the phenomenon of the experiment shall not appear in practice.  
(5) The masonry structure designed with the MG slide isolator placed at its foundation is applicable to the seismic design of low-rise masonry houses. At the same time, the material used offers good cost efficiency, working stability and straightforward engineering. Using the embedded flay ash blocks, the specimens--both clay bricks and recycled concrete bricks--provide good force bearing and thermal insulation. The blocks boost the thermal performance and the seismic resistance of the structure in general.  
(6) The manufacture of such structures can increase the recycling of waste materials in that recycled glass, industrial waste, and scraped bricks and concrete can be used to manufacture the marbles, flay ash blocks and recycled bricks, respectively.  
We carried out low-reversed cyclic loading tests on four differently structured masonry specimens. These tests--together with what the research team has achieved in the vibration tests conducted earlier on the integrated masonry structure of recycled bricks and adobe--constitute the theoretical system of seismic resistance for the MG slide, which is of reference to the seismic design of low-rise masonry houses.  
This research was conducted with the financial support of the National Science and technology support program of China (No. 2015 BAL03B01).  
[PERSON] wrote the manuscript; [PERSON], [PERSON], [PERSON], [PERSON] designed the experiments; [PERSON], [PERSON] and [PERSON] modified the final paper.  
The authors declare no conflict of interest.  
The following abbreviations are used in this manuscript:  
\begin{tabular}{l l} MDPI & Multidisciplinary Digital Publishing Institute \\ DOAJ & Directory of open access journals \\ TLA & Three letter acronym \\ LD & linear dichroism \\ \end{tabular}